2632 lines
97 KiB
Plaintext
2632 lines
97 KiB
Plaintext
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drop table if exists t1,t2;
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set names latin1;
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select 'hello',"'hello'",'""hello""','''h''e''l''l''o''',"hel""lo",'hel\'lo';
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hello 'hello' ""hello"" 'h'e'l'l'o' hel"lo hel'lo
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hello 'hello' ""hello"" 'h'e'l'l'o' hel"lo hel'lo
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select 'hello' 'monty';
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hello
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hellomonty
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select length('\n\t\r\b\0\_\%\\');
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length('\n\t\r\b\0\_\%\\')
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10
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select bit_length('\n\t\r\b\0\_\%\\');
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bit_length('\n\t\r\b\0\_\%\\')
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80
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select char_length('\n\t\r\b\0\_\%\\');
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char_length('\n\t\r\b\0\_\%\\')
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10
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select length(_latin1'\n\t\n\b\0\\_\\%\\');
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length(_latin1'\n\t\n\b\0\\_\\%\\')
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10
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select concat('monty',' was here ','again'),length('hello'),char(ascii('h')),ord('h');
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concat('monty',' was here ','again') length('hello') char(ascii('h')) ord('h')
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monty was here again 5 h 104
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select hex(char(256));
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hex(char(256))
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0100
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select locate('he','hello'),locate('he','hello',2),locate('lo','hello',2) ;
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locate('he','hello') locate('he','hello',2) locate('lo','hello',2)
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1 0 4
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select instr('hello','HE'), instr('hello',binary 'HE'), instr(binary 'hello','HE');
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instr('hello','HE') instr('hello',binary 'HE') instr(binary 'hello','HE')
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1 0 0
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select position(binary 'll' in 'hello'),position('a' in binary 'hello');
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position(binary 'll' in 'hello') position('a' in binary 'hello')
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3 0
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select left('hello',null), right('hello',null);
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left('hello',null) right('hello',null)
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NULL NULL
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select left('hello',2),right('hello',2),substring('hello',2,2),mid('hello',1,5) ;
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left('hello',2) right('hello',2) substring('hello',2,2) mid('hello',1,5)
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he lo el hello
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select concat('',left(right(concat('what ',concat('is ','happening')),9),4),'',substring('monty',5,1)) ;
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concat('',left(right(concat('what ',concat('is ','happening')),9),4),'',substring('monty',5,1))
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happy
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select substring_index('www.tcx.se','.',-2),substring_index('www.tcx.se','.',1);
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substring_index('www.tcx.se','.',-2) substring_index('www.tcx.se','.',1)
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tcx.se www
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select substring_index('www.tcx.se','tcx',1),substring_index('www.tcx.se','tcx',-1);
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substring_index('www.tcx.se','tcx',1) substring_index('www.tcx.se','tcx',-1)
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www. .se
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select substring_index('.tcx.se','.',-2),substring_index('.tcx.se','.tcx',-1);
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substring_index('.tcx.se','.',-2) substring_index('.tcx.se','.tcx',-1)
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tcx.se .se
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select substring_index('aaaaaaaaa1','a',1);
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substring_index('aaaaaaaaa1','a',1)
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select substring_index('aaaaaaaaa1','aa',1);
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substring_index('aaaaaaaaa1','aa',1)
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select substring_index('aaaaaaaaa1','aa',2);
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substring_index('aaaaaaaaa1','aa',2)
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aa
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select substring_index('aaaaaaaaa1','aa',3);
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substring_index('aaaaaaaaa1','aa',3)
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aaaa
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select substring_index('aaaaaaaaa1','aa',4);
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substring_index('aaaaaaaaa1','aa',4)
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aaaaaa
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select substring_index('aaaaaaaaa1','aa',5);
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substring_index('aaaaaaaaa1','aa',5)
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aaaaaaaaa1
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select substring_index('aaaaaaaaa1','aaa',1);
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substring_index('aaaaaaaaa1','aaa',1)
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select substring_index('aaaaaaaaa1','aaa',2);
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substring_index('aaaaaaaaa1','aaa',2)
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aaa
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select substring_index('aaaaaaaaa1','aaa',3);
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substring_index('aaaaaaaaa1','aaa',3)
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aaaaaa
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select substring_index('aaaaaaaaa1','aaa',4);
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substring_index('aaaaaaaaa1','aaa',4)
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aaaaaaaaa1
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select substring_index('aaaaaaaaa1','aaaa',1);
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substring_index('aaaaaaaaa1','aaaa',1)
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select substring_index('aaaaaaaaa1','aaaa',2);
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substring_index('aaaaaaaaa1','aaaa',2)
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aaaa
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select substring_index('aaaaaaaaa1','1',1);
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substring_index('aaaaaaaaa1','1',1)
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aaaaaaaaa
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select substring_index('aaaaaaaaa1','a',-1);
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substring_index('aaaaaaaaa1','a',-1)
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1
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select substring_index('aaaaaaaaa1','aa',-1);
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substring_index('aaaaaaaaa1','aa',-1)
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1
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select substring_index('aaaaaaaaa1','aa',-2);
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substring_index('aaaaaaaaa1','aa',-2)
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aa1
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select substring_index('aaaaaaaaa1','aa',-3);
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substring_index('aaaaaaaaa1','aa',-3)
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aaaa1
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select substring_index('aaaaaaaaa1','aa',-4);
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substring_index('aaaaaaaaa1','aa',-4)
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aaaaaa1
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select substring_index('aaaaaaaaa1','aa',-5);
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substring_index('aaaaaaaaa1','aa',-5)
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aaaaaaaaa1
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select substring_index('aaaaaaaaa1','aaa',-1);
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substring_index('aaaaaaaaa1','aaa',-1)
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1
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select substring_index('aaaaaaaaa1','aaa',-2);
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substring_index('aaaaaaaaa1','aaa',-2)
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aaa1
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select substring_index('aaaaaaaaa1','aaa',-3);
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substring_index('aaaaaaaaa1','aaa',-3)
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aaaaaa1
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select substring_index('aaaaaaaaa1','aaa',-4);
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substring_index('aaaaaaaaa1','aaa',-4)
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select substring_index('the king of thethe hill','the',-2);
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substring_index('the king of thethe hill','the',-2)
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the hill
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select substring_index('the king of the the hill','the',-2);
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substring_index('the king of the the hill','the',-2)
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the hill
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select substring_index('the king of the the hill','the',-2);
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substring_index('the king of the the hill','the',-2)
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the hill
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select substring_index('the king of the the hill',' the ',-1);
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substring_index('the king of the the hill',' the ',-1)
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hill
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select substring_index('the king of the the hill',' the ',-2);
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substring_index('the king of the the hill',' the ',-2)
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the hill
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select substring_index('the king of the the hill',' ',-1);
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substring_index('the king of the the hill',' ',-1)
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hill
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select substring_index('the king of the the hill',' ',-2);
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substring_index('the king of the the hill',' ',-2)
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the hill
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select substring_index('the king of the the hill',' ',-3);
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substring_index('the king of the the hill',' ',-3)
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the hill
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select substring_index('the king of the the hill',' ',-4);
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substring_index('the king of the the hill',' ',-4)
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the the hill
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select substring_index('the king of the the hill',' ',-5);
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substring_index('the king of the the hill',' ',-5)
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of the the hill
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select substring_index('the king of the.the hill','the',-2);
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substring_index('the king of the.the hill','the',-2)
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.the hill
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select substring_index('the king of thethethe.the hill','the',-3);
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substring_index('the king of thethethe.the hill','the',-3)
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the.the hill
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select substring_index('the king of thethethe.the hill','the',-1);
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substring_index('the king of thethethe.the hill','the',-1)
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hill
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select substring_index('the king of the the hill','the',1);
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substring_index('the king of the the hill','the',1)
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select substring_index('the king of the the hill','the',2);
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substring_index('the king of the the hill','the',2)
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the king of
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select substring_index('the king of the the hill','the',3);
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substring_index('the king of the the hill','the',3)
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the king of the
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select concat(':',ltrim(' left '),':',rtrim(' right '),':');
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concat(':',ltrim(' left '),':',rtrim(' right '),':')
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:left : right:
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select concat(':',trim(leading from ' left '),':',trim(trailing from ' right '),':');
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concat(':',trim(leading from ' left '),':',trim(trailing from ' right '),':')
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:left : right:
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select concat(':',trim(LEADING FROM ' left'),':',trim(TRAILING FROM ' right '),':');
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concat(':',trim(LEADING FROM ' left'),':',trim(TRAILING FROM ' right '),':')
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:left: right:
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select concat(':',trim(' m '),':',trim(BOTH FROM ' y '),':',trim('*' FROM '*s*'),':');
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concat(':',trim(' m '),':',trim(BOTH FROM ' y '),':',trim('*' FROM '*s*'),':')
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:m:y:s:
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select concat(':',trim(BOTH 'ab' FROM 'ababmyabab'),':',trim(BOTH '*' FROM '***sql'),':');
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concat(':',trim(BOTH 'ab' FROM 'ababmyabab'),':',trim(BOTH '*' FROM '***sql'),':')
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:my:sql:
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select concat(':',trim(LEADING '.*' FROM '.*my'),':',trim(TRAILING '.*' FROM 'sql.*.*'),':');
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concat(':',trim(LEADING '.*' FROM '.*my'),':',trim(TRAILING '.*' FROM 'sql.*.*'),':')
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:my:sql:
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select TRIM("foo" FROM "foo"), TRIM("foo" FROM "foook"), TRIM("foo" FROM "okfoo");
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TRIM("foo" FROM "foo") TRIM("foo" FROM "foook") TRIM("foo" FROM "okfoo")
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ok ok
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select concat_ws(', ','monty','was here','again');
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concat_ws(', ','monty','was here','again')
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monty, was here, again
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select concat_ws(NULL,'a'),concat_ws(',',NULL,'');
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concat_ws(NULL,'a') concat_ws(',',NULL,'')
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NULL
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select concat_ws(',','',NULL,'a');
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concat_ws(',','',NULL,'a')
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,a
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SELECT CONCAT('"',CONCAT_WS('";"',repeat('a',60),repeat('b',60),repeat('c',60),repeat('d',100)), '"');
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CONCAT('"',CONCAT_WS('";"',repeat('a',60),repeat('b',60),repeat('c',60),repeat('d',100)), '"')
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"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb";"cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc";"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
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select insert('txs',2,1,'hi'),insert('is ',4,0,'a'),insert('txxxxt',2,4,'es');
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insert('txs',2,1,'hi') insert('is ',4,0,'a') insert('txxxxt',2,4,'es')
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this is a test
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select replace('aaaa','a','b'),replace('aaaa','aa','b'),replace('aaaa','a','bb'),replace('aaaa','','b'),replace('bbbb','a','c');
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replace('aaaa','a','b') replace('aaaa','aa','b') replace('aaaa','a','bb') replace('aaaa','','b') replace('bbbb','a','c')
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bbbb bb bbbbbbbb aaaa bbbb
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select replace(concat(lcase(concat('THIS',' ','IS',' ','A',' ')),ucase('false'),' ','test'),'FALSE','REAL') ;
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replace(concat(lcase(concat('THIS',' ','IS',' ','A',' ')),ucase('false'),' ','test'),'FALSE','REAL')
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this is a REAL test
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select soundex(''),soundex('he'),soundex('hello all folks'),soundex('#3556 in bugdb');
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soundex('') soundex('he') soundex('hello all folks') soundex('#3556 in bugdb')
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H000 H4142 I51231
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select 'mood' sounds like 'mud';
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'mood' sounds like 'mud'
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1
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select 'Glazgo' sounds like 'Liverpool';
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'Glazgo' sounds like 'Liverpool'
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0
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select null sounds like 'null';
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null sounds like 'null'
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NULL
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select 'null' sounds like null;
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'null' sounds like null
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NULL
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select null sounds like null;
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null sounds like null
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NULL
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select md5('hello');
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md5('hello')
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5d41402abc4b2a76b9719d911017c592
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select crc32("123");
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crc32("123")
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2286445522
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select sha('abc');
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sha('abc')
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a9993e364706816aba3e25717850c26c9cd0d89d
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select sha1('abc');
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sha1('abc')
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a9993e364706816aba3e25717850c26c9cd0d89d
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select aes_decrypt(aes_encrypt('abc','1'),'1');
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aes_decrypt(aes_encrypt('abc','1'),'1')
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abc
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select aes_decrypt(aes_encrypt('abc','1'),1);
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aes_decrypt(aes_encrypt('abc','1'),1)
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abc
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select aes_encrypt(NULL,"a");
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aes_encrypt(NULL,"a")
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NULL
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select aes_encrypt("a",NULL);
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aes_encrypt("a",NULL)
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NULL
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select aes_decrypt(NULL,"a");
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aes_decrypt(NULL,"a")
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NULL
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select aes_decrypt("a",NULL);
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aes_decrypt("a",NULL)
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NULL
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select aes_decrypt("a","a");
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aes_decrypt("a","a")
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NULL
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select aes_decrypt(aes_encrypt("","a"),"a");
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aes_decrypt(aes_encrypt("","a"),"a")
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select repeat('monty',5),concat('*',space(5),'*');
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repeat('monty',5) concat('*',space(5),'*')
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montymontymontymontymonty * *
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select reverse('abc'),reverse('abcd');
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reverse('abc') reverse('abcd')
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cba dcba
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select rpad('a',4,'1'),rpad('a',4,'12'),rpad('abcd',3,'12'), rpad(11, 10 , 22), rpad("ab", 10, 22);
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rpad('a',4,'1') rpad('a',4,'12') rpad('abcd',3,'12') rpad(11, 10 , 22) rpad("ab", 10, 22)
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a111 a121 abc 1122222222 ab22222222
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select lpad('a',4,'1'),lpad('a',4,'12'),lpad('abcd',3,'12'), lpad(11, 10 , 22);
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lpad('a',4,'1') lpad('a',4,'12') lpad('abcd',3,'12') lpad(11, 10 , 22)
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111a 121a abc 2222222211
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select rpad(741653838,17,'0'),lpad(741653838,17,'0');
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rpad(741653838,17,'0') lpad(741653838,17,'0')
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74165383800000000 00000000741653838
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select rpad('abcd',7,'ab'),lpad('abcd',7,'ab');
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rpad('abcd',7,'ab') lpad('abcd',7,'ab')
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abcdaba abaabcd
|
|||
|
|
select rpad('abcd',1,'ab'),lpad('abcd',1,'ab');
|
|||
|
|
rpad('abcd',1,'ab') lpad('abcd',1,'ab')
|
|||
|
|
a a
|
|||
|
|
select rpad('STRING', 20, CONCAT('p','a','d') );
|
|||
|
|
rpad('STRING', 20, CONCAT('p','a','d') )
|
|||
|
|
STRINGpadpadpadpadpa
|
|||
|
|
select lpad('STRING', 20, CONCAT('p','a','d') );
|
|||
|
|
lpad('STRING', 20, CONCAT('p','a','d') )
|
|||
|
|
padpadpadpadpaSTRING
|
|||
|
|
select LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD'),GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD');
|
|||
|
|
LEAST(NULL,'HARRY','HARRIOT',NULL,'HAROLD') GREATEST(NULL,'HARRY','HARRIOT',NULL,'HAROLD')
|
|||
|
|
NULL NULL
|
|||
|
|
select least(1,2,3) | greatest(16,32,8), least(5,4)*1,greatest(-1.0,1.0)*1,least(3,2,1)*1.0,greatest(1,1.1,1.0),least("10",9),greatest("A","B","0");
|
|||
|
|
least(1,2,3) | greatest(16,32,8) least(5,4)*1 greatest(-1.0,1.0)*1 least(3,2,1)*1.0 greatest(1,1.1,1.0) least("10",9) greatest("A","B","0")
|
|||
|
|
33 4 1.0 1.0 1.1 9 B
|
|||
|
|
select decode(encode(repeat("a",100000),"monty"),"monty")=repeat("a",100000);
|
|||
|
|
decode(encode(repeat("a",100000),"monty"),"monty")=repeat("a",100000)
|
|||
|
|
1
|
|||
|
|
select decode(encode("abcdef","monty"),"monty")="abcdef";
|
|||
|
|
decode(encode("abcdef","monty"),"monty")="abcdef"
|
|||
|
|
1
|
|||
|
|
select quote('\'\"\\test');
|
|||
|
|
quote('\'\"\\test')
|
|||
|
|
'\'"\\test'
|
|||
|
|
select quote(concat('abc\'', '\\cba'));
|
|||
|
|
quote(concat('abc\'', '\\cba'))
|
|||
|
|
'abc\'\\cba'
|
|||
|
|
select quote(1/0), quote('\0\Z');
|
|||
|
|
quote(1/0) quote('\0\Z')
|
|||
|
|
NULL '\0\Z'
|
|||
|
|
select length(quote(concat(char(0),"test")));
|
|||
|
|
length(quote(concat(char(0),"test")))
|
|||
|
|
8
|
|||
|
|
select hex(quote(concat(char(224),char(227),char(230),char(231),char(232),char(234),char(235))));
|
|||
|
|
hex(quote(concat(char(224),char(227),char(230),char(231),char(232),char(234),char(235))))
|
|||
|
|
27E0E3E6E7E8EAEB27
|
|||
|
|
select unhex(hex("foobar")), hex(unhex("1234567890ABCDEF")), unhex("345678"), unhex(NULL);
|
|||
|
|
unhex(hex("foobar")) hex(unhex("1234567890ABCDEF")) unhex("345678") unhex(NULL)
|
|||
|
|
foobar 1234567890ABCDEF 4Vx NULL
|
|||
|
|
select hex(unhex("1")), hex(unhex("12")), hex(unhex("123")), hex(unhex("1234")), hex(unhex("12345")), hex(unhex("123456"));
|
|||
|
|
hex(unhex("1")) hex(unhex("12")) hex(unhex("123")) hex(unhex("1234")) hex(unhex("12345")) hex(unhex("123456"))
|
|||
|
|
01 12 0123 1234 012345 123456
|
|||
|
|
select length(unhex(md5("abrakadabra")));
|
|||
|
|
length(unhex(md5("abrakadabra")))
|
|||
|
|
16
|
|||
|
|
select concat('a', quote(NULL));
|
|||
|
|
concat('a', quote(NULL))
|
|||
|
|
aNULL
|
|||
|
|
select reverse("");
|
|||
|
|
reverse("")
|
|||
|
|
|
|||
|
|
select insert("aa",100,1,"b"),insert("aa",1,3,"b"),left("aa",-1),substring("a",1,2);
|
|||
|
|
insert("aa",100,1,"b") insert("aa",1,3,"b") left("aa",-1) substring("a",1,2)
|
|||
|
|
aa b a
|
|||
|
|
select elt(2,1),field(NULL,"a","b","c"),reverse("");
|
|||
|
|
elt(2,1) field(NULL,"a","b","c") reverse("")
|
|||
|
|
NULL 0
|
|||
|
|
select locate("a","b",2),locate("","a",1);
|
|||
|
|
locate("a","b",2) locate("","a",1)
|
|||
|
|
0 1
|
|||
|
|
select ltrim("a"),rtrim("a"),trim(BOTH "" from "a"),trim(BOTH " " from "a");
|
|||
|
|
ltrim("a") rtrim("a") trim(BOTH "" from "a") trim(BOTH " " from "a")
|
|||
|
|
a a a a
|
|||
|
|
select concat("1","2")|0,concat("1",".5")+0.0;
|
|||
|
|
concat("1","2")|0 concat("1",".5")+0.0
|
|||
|
|
12 1.5
|
|||
|
|
select substring_index("www.tcx.se","",3);
|
|||
|
|
substring_index("www.tcx.se","",3)
|
|||
|
|
|
|||
|
|
select length(repeat("a",100000000)),length(repeat("a",1000*64));
|
|||
|
|
length(repeat("a",100000000)) length(repeat("a",1000*64))
|
|||
|
|
NULL 64000
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select position("0" in "baaa" in (1)),position("0" in "1" in (1,2,3)),position("sql" in ("mysql"));
|
|||
|
|
position("0" in "baaa" in (1)) position("0" in "1" in (1,2,3)) position("sql" in ("mysql"))
|
|||
|
|
1 0 3
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1292 Truncated incorrect DOUBLE value: 'baaa'
|
|||
|
|
select position(("1" in (1,2,3)) in "01");
|
|||
|
|
position(("1" in (1,2,3)) in "01")
|
|||
|
|
2
|
|||
|
|
select length(repeat("a",65500)),length(concat(repeat("a",32000),repeat("a",32000))),length(replace("aaaaa","a",concat(repeat("a",10000)))),length(insert(repeat("a",40000),1,30000,repeat("b",50000)));
|
|||
|
|
length(repeat("a",65500)) length(concat(repeat("a",32000),repeat("a",32000))) length(replace("aaaaa","a",concat(repeat("a",10000)))) length(insert(repeat("a",40000),1,30000,repeat("b",50000)))
|
|||
|
|
65500 64000 50000 60000
|
|||
|
|
select length(repeat("a",1000000)),length(concat(repeat("a",32000),repeat("a",32000),repeat("a",32000))),length(replace("aaaaa","a",concat(repeat("a",32000)))),length(insert(repeat("a",48000),1,1000,repeat("a",48000)));
|
|||
|
|
length(repeat("a",1000000)) length(concat(repeat("a",32000),repeat("a",32000),repeat("a",32000))) length(replace("aaaaa","a",concat(repeat("a",32000)))) length(insert(repeat("a",48000),1,1000,repeat("a",48000)))
|
|||
|
|
1000000 96000 160000 95000
|
|||
|
|
create table t1 ( domain char(50) );
|
|||
|
|
insert into t1 VALUES ("hello.de" ), ("test.de" );
|
|||
|
|
select domain from t1 where concat('@', trim(leading '.' from concat('.', domain))) = '@hello.de';
|
|||
|
|
domain
|
|||
|
|
hello.de
|
|||
|
|
select domain from t1 where concat('@', trim(leading '.' from concat('.', domain))) = '@test.de';
|
|||
|
|
domain
|
|||
|
|
test.de
|
|||
|
|
drop table t1;
|
|||
|
|
CREATE TABLE t1 (
|
|||
|
|
id int(10) unsigned NOT NULL,
|
|||
|
|
title varchar(255) default NULL,
|
|||
|
|
prio int(10) unsigned default NULL,
|
|||
|
|
category int(10) unsigned default NULL,
|
|||
|
|
program int(10) unsigned default NULL,
|
|||
|
|
bugdesc text,
|
|||
|
|
created datetime default NULL,
|
|||
|
|
modified timestamp NOT NULL,
|
|||
|
|
bugstatus int(10) unsigned default NULL,
|
|||
|
|
submitter int(10) unsigned default NULL
|
|||
|
|
) ENGINE=MyISAM;
|
|||
|
|
INSERT INTO t1 VALUES (1,'Link',1,1,1,'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa','2001-02-28 08:40:16',20010228084016,0,4);
|
|||
|
|
SELECT CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter), '"') FROM t1;
|
|||
|
|
CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter), '"')
|
|||
|
|
"Link";"1";"1";"1";"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";"2001-02-28 08:40:16";"20010228084016";"0";"4"
|
|||
|
|
SELECT CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugstatus,submitter), '"') FROM t1;
|
|||
|
|
CONCAT('"',CONCAT_WS('";"',title,prio,category,program,bugstatus,submitter), '"')
|
|||
|
|
"Link";"1";"1";"1";"0";"4"
|
|||
|
|
SELECT CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter) FROM t1;
|
|||
|
|
CONCAT_WS('";"',title,prio,category,program,bugdesc,created,modified+0,bugstatus,submitter)
|
|||
|
|
Link";"1";"1";"1";"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";"2001-02-28 08:40:16";"20010228084016";"0";"4
|
|||
|
|
SELECT bugdesc, REPLACE(bugdesc, 'xxxxxxxxxxxxxxxxxxxx', 'bbbbbbbbbbbbbbbbbbbb') from t1 group by bugdesc;
|
|||
|
|
bugdesc REPLACE(bugdesc, 'xxxxxxxxxxxxxxxxxxxx', 'bbbbbbbbbbbbbbbbbbbb')
|
|||
|
|
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
|
|||
|
|
drop table t1;
|
|||
|
|
CREATE TABLE t1 (id int(11) NOT NULL auto_increment, tmp text NOT NULL, KEY id (id)) ENGINE=MyISAM;
|
|||
|
|
INSERT INTO t1 VALUES (1, 'a545f661efdd1fb66fdee3aab79945bf');
|
|||
|
|
SELECT 1 FROM t1 WHERE tmp=AES_DECRYPT(tmp,"password");
|
|||
|
|
1
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE TABLE t1 (
|
|||
|
|
wid int(10) unsigned NOT NULL auto_increment,
|
|||
|
|
data_podp date default NULL,
|
|||
|
|
status_wnio enum('nowy','podp','real','arch') NOT NULL default 'nowy',
|
|||
|
|
PRIMARY KEY(wid)
|
|||
|
|
);
|
|||
|
|
INSERT INTO t1 VALUES (8,NULL,'real');
|
|||
|
|
INSERT INTO t1 VALUES (9,NULL,'nowy');
|
|||
|
|
SELECT elt(status_wnio,data_podp) FROM t1 GROUP BY wid;
|
|||
|
|
elt(status_wnio,data_podp)
|
|||
|
|
NULL
|
|||
|
|
NULL
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE TABLE t1 (title text) ENGINE=MyISAM;
|
|||
|
|
INSERT INTO t1 VALUES ('Congress reconvenes in September to debate welfare and adult education');
|
|||
|
|
INSERT INTO t1 VALUES ('House passes the CAREERS bill');
|
|||
|
|
SELECT CONCAT("</a>",RPAD("",(55 - LENGTH(title)),".")) from t1;
|
|||
|
|
CONCAT("</a>",RPAD("",(55 - LENGTH(title)),"."))
|
|||
|
|
NULL
|
|||
|
|
</a>..........................
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE TABLE t1 (i int, j int);
|
|||
|
|
INSERT INTO t1 VALUES (1,1),(2,2);
|
|||
|
|
SELECT DISTINCT i, ELT(j, '345', '34') FROM t1;
|
|||
|
|
i ELT(j, '345', '34')
|
|||
|
|
1 345
|
|||
|
|
2 34
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
create table t1(a char(4));
|
|||
|
|
insert into t1 values ('one'),(NULL),('two'),('four');
|
|||
|
|
select a, quote(a), isnull(quote(a)), quote(a) is null, ifnull(quote(a), 'n') from t1;
|
|||
|
|
a quote(a) isnull(quote(a)) quote(a) is null ifnull(quote(a), 'n')
|
|||
|
|
one 'one' 0 0 'one'
|
|||
|
|
NULL NULL 0 0 NULL
|
|||
|
|
two 'two' 0 0 'two'
|
|||
|
|
four 'four' 0 0 'four'
|
|||
|
|
drop table t1;
|
|||
|
|
select trim(trailing 'foo' from 'foo');
|
|||
|
|
trim(trailing 'foo' from 'foo')
|
|||
|
|
|
|||
|
|
select trim(leading 'foo' from 'foo');
|
|||
|
|
trim(leading 'foo' from 'foo')
|
|||
|
|
|
|||
|
|
select quote(ltrim(concat(' ', 'a')));
|
|||
|
|
quote(ltrim(concat(' ', 'a')))
|
|||
|
|
'a'
|
|||
|
|
select quote(trim(concat(' ', 'a')));
|
|||
|
|
quote(trim(concat(' ', 'a')))
|
|||
|
|
'a'
|
|||
|
|
CREATE TABLE t1 SELECT 1 UNION SELECT 2 UNION SELECT 3;
|
|||
|
|
SELECT QUOTE('A') FROM t1;
|
|||
|
|
QUOTE('A')
|
|||
|
|
'A'
|
|||
|
|
'A'
|
|||
|
|
'A'
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
select 1=_latin1'1';
|
|||
|
|
1=_latin1'1'
|
|||
|
|
1
|
|||
|
|
select _latin1'1'=1;
|
|||
|
|
_latin1'1'=1
|
|||
|
|
1
|
|||
|
|
select _latin2'1'=1;
|
|||
|
|
_latin2'1'=1
|
|||
|
|
1
|
|||
|
|
select 1=_latin2'1';
|
|||
|
|
1=_latin2'1'
|
|||
|
|
1
|
|||
|
|
select _latin1'1'=_latin2'1';
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation '='
|
|||
|
|
select row('a','b','c') = row('a','b','c');
|
|||
|
|
row('a','b','c') = row('a','b','c')
|
|||
|
|
1
|
|||
|
|
select row('A','b','c') = row('a','b','c');
|
|||
|
|
row('A','b','c') = row('a','b','c')
|
|||
|
|
1
|
|||
|
|
select row('A' COLLATE latin1_bin,'b','c') = row('a','b','c');
|
|||
|
|
row('A' COLLATE latin1_bin,'b','c') = row('a','b','c')
|
|||
|
|
0
|
|||
|
|
select row('A','b','c') = row('a' COLLATE latin1_bin,'b','c');
|
|||
|
|
row('A','b','c') = row('a' COLLATE latin1_bin,'b','c')
|
|||
|
|
0
|
|||
|
|
select row('A' COLLATE latin1_general_ci,'b','c') = row('a' COLLATE latin1_bin,'b','c');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation '='
|
|||
|
|
select concat(_latin1'a',_latin2'a');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'concat'
|
|||
|
|
select concat(_latin1'a',_latin2'a',_latin5'a');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin5_turkish_ci,COERCIBLE) for operation 'concat'
|
|||
|
|
select concat(_latin1'a',_latin2'a',_latin5'a',_latin7'a');
|
|||
|
|
ERROR HY000: Illegal mix of collations for operation 'concat'
|
|||
|
|
select concat_ws(_latin1'a',_latin2'a');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'concat_ws'
|
|||
|
|
select FIELD('b','A','B');
|
|||
|
|
FIELD('b','A','B')
|
|||
|
|
2
|
|||
|
|
select FIELD('B','A','B');
|
|||
|
|
FIELD('B','A','B')
|
|||
|
|
2
|
|||
|
|
select FIELD('b' COLLATE latin1_bin,'A','B');
|
|||
|
|
FIELD('b' COLLATE latin1_bin,'A','B')
|
|||
|
|
0
|
|||
|
|
select FIELD('b','A' COLLATE latin1_bin,'B');
|
|||
|
|
FIELD('b','A' COLLATE latin1_bin,'B')
|
|||
|
|
0
|
|||
|
|
select FIELD(_latin2'b','A','B');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'field'
|
|||
|
|
select FIELD('b',_latin2'A','B');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'field'
|
|||
|
|
select FIELD('1',_latin2'3','2',1);
|
|||
|
|
FIELD('1',_latin2'3','2',1)
|
|||
|
|
3
|
|||
|
|
select POSITION(_latin1'B' IN _latin1'abcd');
|
|||
|
|
POSITION(_latin1'B' IN _latin1'abcd')
|
|||
|
|
2
|
|||
|
|
select POSITION(_latin1'B' IN _latin1'abcd' COLLATE latin1_bin);
|
|||
|
|
POSITION(_latin1'B' IN _latin1'abcd' COLLATE latin1_bin)
|
|||
|
|
0
|
|||
|
|
select POSITION(_latin1'B' COLLATE latin1_bin IN _latin1'abcd');
|
|||
|
|
POSITION(_latin1'B' COLLATE latin1_bin IN _latin1'abcd')
|
|||
|
|
0
|
|||
|
|
select POSITION(_latin1'B' COLLATE latin1_general_ci IN _latin1'abcd' COLLATE latin1_bin);
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_bin,EXPLICIT) and (latin1_general_ci,EXPLICIT) for operation 'locate'
|
|||
|
|
select POSITION(_latin1'B' IN _latin2'abcd');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE) and (latin1_swedish_ci,COERCIBLE) for operation 'locate'
|
|||
|
|
select FIND_IN_SET(_latin1'B',_latin1'a,b,c,d');
|
|||
|
|
FIND_IN_SET(_latin1'B',_latin1'a,b,c,d')
|
|||
|
|
2
|
|||
|
|
select FIND_IN_SET(_latin1'B' COLLATE latin1_general_ci,_latin1'a,b,c,d' COLLATE latin1_bin);
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'find_in_set'
|
|||
|
|
select FIND_IN_SET(_latin1'B',_latin2'a,b,c,d');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'find_in_set'
|
|||
|
|
select SUBSTRING_INDEX(_latin1'abcdabcdabcd',_latin1'd',2);
|
|||
|
|
SUBSTRING_INDEX(_latin1'abcdabcdabcd',_latin1'd',2)
|
|||
|
|
abcdabc
|
|||
|
|
select SUBSTRING_INDEX(_latin1'abcdabcdabcd',_latin2'd',2);
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation 'substring_index'
|
|||
|
|
select SUBSTRING_INDEX(_latin1'abcdabcdabcd' COLLATE latin1_general_ci,_latin1'd' COLLATE latin1_bin,2);
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_bin,EXPLICIT) for operation 'substring_index'
|
|||
|
|
select _latin1'B' between _latin1'a' and _latin1'c';
|
|||
|
|
_latin1'B' between _latin1'a' and _latin1'c'
|
|||
|
|
1
|
|||
|
|
select _latin1'B' collate latin1_bin between _latin1'a' and _latin1'c';
|
|||
|
|
_latin1'B' collate latin1_bin between _latin1'a' and _latin1'c'
|
|||
|
|
0
|
|||
|
|
select _latin1'B' between _latin1'a' collate latin1_bin and _latin1'c';
|
|||
|
|
_latin1'B' between _latin1'a' collate latin1_bin and _latin1'c'
|
|||
|
|
0
|
|||
|
|
select _latin1'B' between _latin1'a' and _latin1'c' collate latin1_bin;
|
|||
|
|
_latin1'B' between _latin1'a' and _latin1'c' collate latin1_bin
|
|||
|
|
0
|
|||
|
|
select _latin2'B' between _latin1'a' and _latin1'b';
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'between'
|
|||
|
|
select _latin1'B' between _latin2'a' and _latin1'b';
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation 'between'
|
|||
|
|
select _latin1'B' between _latin1'a' and _latin2'b';
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE) for operation 'between'
|
|||
|
|
select _latin1'B' collate latin1_general_ci between _latin1'a' collate latin1_bin and _latin1'b';
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT), (latin1_bin,EXPLICIT), (latin1_swedish_ci,COERCIBLE) for operation 'between'
|
|||
|
|
select _latin1'B' in (_latin1'a',_latin1'b');
|
|||
|
|
_latin1'B' in (_latin1'a',_latin1'b')
|
|||
|
|
1
|
|||
|
|
select _latin1'B' collate latin1_bin in (_latin1'a',_latin1'b');
|
|||
|
|
_latin1'B' collate latin1_bin in (_latin1'a',_latin1'b')
|
|||
|
|
0
|
|||
|
|
select _latin1'B' in (_latin1'a' collate latin1_bin,_latin1'b');
|
|||
|
|
_latin1'B' in (_latin1'a' collate latin1_bin,_latin1'b')
|
|||
|
|
0
|
|||
|
|
select _latin1'B' in (_latin1'a',_latin1'b' collate latin1_bin);
|
|||
|
|
_latin1'B' in (_latin1'a',_latin1'b' collate latin1_bin)
|
|||
|
|
0
|
|||
|
|
select _latin2'B' in (_latin1'a',_latin1'b');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation ' IN '
|
|||
|
|
select _latin1'B' in (_latin2'a',_latin1'b');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE) for operation ' IN '
|
|||
|
|
select _latin1'B' in (_latin1'a',_latin2'b');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE), (latin1_swedish_ci,COERCIBLE), (latin2_general_ci,COERCIBLE) for operation ' IN '
|
|||
|
|
select _latin1'B' COLLATE latin1_general_ci in (_latin1'a' COLLATE latin1_bin,_latin1'b');
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT), (latin1_bin,EXPLICIT), (latin1_swedish_ci,COERCIBLE) for operation ' IN '
|
|||
|
|
select _latin1'B' COLLATE latin1_general_ci in (_latin1'a',_latin1'b' COLLATE latin1_bin);
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT), (latin1_swedish_ci,COERCIBLE), (latin1_bin,EXPLICIT) for operation ' IN '
|
|||
|
|
select collation(bin(130)), coercibility(bin(130));
|
|||
|
|
collation(bin(130)) coercibility(bin(130))
|
|||
|
|
latin1_swedish_ci 4
|
|||
|
|
select collation(oct(130)), coercibility(oct(130));
|
|||
|
|
collation(oct(130)) coercibility(oct(130))
|
|||
|
|
latin1_swedish_ci 4
|
|||
|
|
select collation(conv(130,16,10)), coercibility(conv(130,16,10));
|
|||
|
|
collation(conv(130,16,10)) coercibility(conv(130,16,10))
|
|||
|
|
latin1_swedish_ci 4
|
|||
|
|
select collation(hex(130)), coercibility(hex(130));
|
|||
|
|
collation(hex(130)) coercibility(hex(130))
|
|||
|
|
latin1_swedish_ci 4
|
|||
|
|
select collation(char(130)), coercibility(hex(130));
|
|||
|
|
collation(char(130)) coercibility(hex(130))
|
|||
|
|
binary 4
|
|||
|
|
select collation(format(130,10)), coercibility(format(130,10));
|
|||
|
|
collation(format(130,10)) coercibility(format(130,10))
|
|||
|
|
latin1_swedish_ci 4
|
|||
|
|
select collation(lcase(_latin2'a')), coercibility(lcase(_latin2'a'));
|
|||
|
|
collation(lcase(_latin2'a')) coercibility(lcase(_latin2'a'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(ucase(_latin2'a')), coercibility(ucase(_latin2'a'));
|
|||
|
|
collation(ucase(_latin2'a')) coercibility(ucase(_latin2'a'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(left(_latin2'a',1)), coercibility(left(_latin2'a',1));
|
|||
|
|
collation(left(_latin2'a',1)) coercibility(left(_latin2'a',1))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(right(_latin2'a',1)), coercibility(right(_latin2'a',1));
|
|||
|
|
collation(right(_latin2'a',1)) coercibility(right(_latin2'a',1))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(substring(_latin2'a',1,1)), coercibility(substring(_latin2'a',1,1));
|
|||
|
|
collation(substring(_latin2'a',1,1)) coercibility(substring(_latin2'a',1,1))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(concat(_latin2'a',_latin2'b')), coercibility(concat(_latin2'a',_latin2'b'));
|
|||
|
|
collation(concat(_latin2'a',_latin2'b')) coercibility(concat(_latin2'a',_latin2'b'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(lpad(_latin2'a',4,_latin2'b')), coercibility(lpad(_latin2'a',4,_latin2'b'));
|
|||
|
|
collation(lpad(_latin2'a',4,_latin2'b')) coercibility(lpad(_latin2'a',4,_latin2'b'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(rpad(_latin2'a',4,_latin2'b')), coercibility(rpad(_latin2'a',4,_latin2'b'));
|
|||
|
|
collation(rpad(_latin2'a',4,_latin2'b')) coercibility(rpad(_latin2'a',4,_latin2'b'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(concat_ws(_latin2'a',_latin2'b')), coercibility(concat_ws(_latin2'a',_latin2'b'));
|
|||
|
|
collation(concat_ws(_latin2'a',_latin2'b')) coercibility(concat_ws(_latin2'a',_latin2'b'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(make_set(255,_latin2'a',_latin2'b',_latin2'c')), coercibility(make_set(255,_latin2'a',_latin2'b',_latin2'c'));
|
|||
|
|
collation(make_set(255,_latin2'a',_latin2'b',_latin2'c')) coercibility(make_set(255,_latin2'a',_latin2'b',_latin2'c'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(export_set(255,_latin2'y',_latin2'n',_latin2' ')), coercibility(export_set(255,_latin2'y',_latin2'n',_latin2' '));
|
|||
|
|
collation(export_set(255,_latin2'y',_latin2'n',_latin2' ')) coercibility(export_set(255,_latin2'y',_latin2'n',_latin2' '))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(trim(_latin2' a ')), coercibility(trim(_latin2' a '));
|
|||
|
|
collation(trim(_latin2' a ')) coercibility(trim(_latin2' a '))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(ltrim(_latin2' a ')), coercibility(ltrim(_latin2' a '));
|
|||
|
|
collation(ltrim(_latin2' a ')) coercibility(ltrim(_latin2' a '))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(rtrim(_latin2' a ')), coercibility(rtrim(_latin2' a '));
|
|||
|
|
collation(rtrim(_latin2' a ')) coercibility(rtrim(_latin2' a '))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(trim(LEADING _latin2' ' FROM _latin2'a')), coercibility(trim(LEADING _latin2'a' FROM _latin2'a'));
|
|||
|
|
collation(trim(LEADING _latin2' ' FROM _latin2'a')) coercibility(trim(LEADING _latin2'a' FROM _latin2'a'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(trim(TRAILING _latin2' ' FROM _latin2'a')), coercibility(trim(TRAILING _latin2'a' FROM _latin2'a'));
|
|||
|
|
collation(trim(TRAILING _latin2' ' FROM _latin2'a')) coercibility(trim(TRAILING _latin2'a' FROM _latin2'a'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(trim(BOTH _latin2' ' FROM _latin2'a')), coercibility(trim(BOTH _latin2'a' FROM _latin2'a'));
|
|||
|
|
collation(trim(BOTH _latin2' ' FROM _latin2'a')) coercibility(trim(BOTH _latin2'a' FROM _latin2'a'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(repeat(_latin2'a',10)), coercibility(repeat(_latin2'a',10));
|
|||
|
|
collation(repeat(_latin2'a',10)) coercibility(repeat(_latin2'a',10))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(reverse(_latin2'ab')), coercibility(reverse(_latin2'ab'));
|
|||
|
|
collation(reverse(_latin2'ab')) coercibility(reverse(_latin2'ab'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(quote(_latin2'ab')), coercibility(quote(_latin2'ab'));
|
|||
|
|
collation(quote(_latin2'ab')) coercibility(quote(_latin2'ab'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(soundex(_latin2'ab')), coercibility(soundex(_latin2'ab'));
|
|||
|
|
collation(soundex(_latin2'ab')) coercibility(soundex(_latin2'ab'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(substring(_latin2'ab',1)), coercibility(substring(_latin2'ab',1));
|
|||
|
|
collation(substring(_latin2'ab',1)) coercibility(substring(_latin2'ab',1))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(insert(_latin2'abcd',2,3,_latin2'ef')), coercibility(insert(_latin2'abcd',2,3,_latin2'ef'));
|
|||
|
|
collation(insert(_latin2'abcd',2,3,_latin2'ef')) coercibility(insert(_latin2'abcd',2,3,_latin2'ef'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(replace(_latin2'abcd',_latin2'b',_latin2'B')), coercibility(replace(_latin2'abcd',_latin2'b',_latin2'B'));
|
|||
|
|
collation(replace(_latin2'abcd',_latin2'b',_latin2'B')) coercibility(replace(_latin2'abcd',_latin2'b',_latin2'B'))
|
|||
|
|
latin2_general_ci 4
|
|||
|
|
select collation(encode('abcd','ab')), coercibility(encode('abcd','ab'));
|
|||
|
|
collation(encode('abcd','ab')) coercibility(encode('abcd','ab'))
|
|||
|
|
binary 4
|
|||
|
|
create table t1
|
|||
|
|
select
|
|||
|
|
bin(130),
|
|||
|
|
oct(130),
|
|||
|
|
conv(130,16,10),
|
|||
|
|
hex(130),
|
|||
|
|
char(130),
|
|||
|
|
format(130,10),
|
|||
|
|
left(_latin2'a',1),
|
|||
|
|
right(_latin2'a',1),
|
|||
|
|
lcase(_latin2'a'),
|
|||
|
|
ucase(_latin2'a'),
|
|||
|
|
substring(_latin2'a',1,1),
|
|||
|
|
concat(_latin2'a',_latin2'b'),
|
|||
|
|
lpad(_latin2'a',4,_latin2'b'),
|
|||
|
|
rpad(_latin2'a',4,_latin2'b'),
|
|||
|
|
concat_ws(_latin2'a',_latin2'b'),
|
|||
|
|
make_set(255,_latin2'a',_latin2'b',_latin2'c'),
|
|||
|
|
export_set(255,_latin2'y',_latin2'n',_latin2' '),
|
|||
|
|
trim(_latin2' a '),
|
|||
|
|
ltrim(_latin2' a '),
|
|||
|
|
rtrim(_latin2' a '),
|
|||
|
|
trim(LEADING _latin2' ' FROM _latin2' a '),
|
|||
|
|
trim(TRAILING _latin2' ' FROM _latin2' a '),
|
|||
|
|
trim(BOTH _latin2' ' FROM _latin2' a '),
|
|||
|
|
repeat(_latin2'a',10),
|
|||
|
|
reverse(_latin2'ab'),
|
|||
|
|
quote(_latin2'ab'),
|
|||
|
|
soundex(_latin2'ab'),
|
|||
|
|
substring(_latin2'ab',1),
|
|||
|
|
insert(_latin2'abcd',2,3,_latin2'ef'),
|
|||
|
|
replace(_latin2'abcd',_latin2'b',_latin2'B'),
|
|||
|
|
encode('abcd','ab')
|
|||
|
|
;
|
|||
|
|
show create table t1;
|
|||
|
|
Table Create Table
|
|||
|
|
t1 CREATE TABLE `t1` (
|
|||
|
|
`bin(130)` varchar(64) DEFAULT NULL,
|
|||
|
|
`oct(130)` varchar(64) DEFAULT NULL,
|
|||
|
|
`conv(130,16,10)` varchar(64) DEFAULT NULL,
|
|||
|
|
`hex(130)` varchar(6) NOT NULL DEFAULT '',
|
|||
|
|
`char(130)` varbinary(4) NOT NULL DEFAULT '',
|
|||
|
|
`format(130,10)` varchar(37) NOT NULL DEFAULT '',
|
|||
|
|
`left(_latin2'a',1)` varchar(1) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`right(_latin2'a',1)` varchar(1) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`lcase(_latin2'a')` varchar(1) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`ucase(_latin2'a')` varchar(1) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`substring(_latin2'a',1,1)` varchar(1) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`concat(_latin2'a',_latin2'b')` varchar(2) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`lpad(_latin2'a',4,_latin2'b')` varchar(4) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`rpad(_latin2'a',4,_latin2'b')` varchar(4) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`concat_ws(_latin2'a',_latin2'b')` varchar(1) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`make_set(255,_latin2'a',_latin2'b',_latin2'c')` varchar(5) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`export_set(255,_latin2'y',_latin2'n',_latin2' ')` varchar(127) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`trim(_latin2' a ')` varchar(3) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`ltrim(_latin2' a ')` varchar(3) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`rtrim(_latin2' a ')` varchar(3) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`trim(LEADING _latin2' ' FROM _latin2' a ')` varchar(3) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`trim(TRAILING _latin2' ' FROM _latin2' a ')` varchar(3) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`trim(BOTH _latin2' ' FROM _latin2' a ')` varchar(3) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`repeat(_latin2'a',10)` varchar(10) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`reverse(_latin2'ab')` varchar(2) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`quote(_latin2'ab')` varchar(6) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`soundex(_latin2'ab')` varchar(4) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`substring(_latin2'ab',1)` varchar(2) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`insert(_latin2'abcd',2,3,_latin2'ef')` varchar(6) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`replace(_latin2'abcd',_latin2'b',_latin2'B')` varchar(4) CHARACTER SET latin2 NOT NULL DEFAULT '',
|
|||
|
|
`encode('abcd','ab')` varbinary(4) NOT NULL DEFAULT ''
|
|||
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
|||
|
|
drop table t1;
|
|||
|
|
create table t1 (a char character set latin2);
|
|||
|
|
insert into t1 values (null);
|
|||
|
|
select charset(a), collation(a), coercibility(a) from t1;
|
|||
|
|
charset(a) collation(a) coercibility(a)
|
|||
|
|
latin2 latin2_general_ci 2
|
|||
|
|
drop table t1;
|
|||
|
|
select charset(null), collation(null), coercibility(null);
|
|||
|
|
charset(null) collation(null) coercibility(null)
|
|||
|
|
binary binary 5
|
|||
|
|
CREATE TABLE t1 (a int, b int);
|
|||
|
|
CREATE TABLE t2 (a int, b int);
|
|||
|
|
INSERT INTO t1 VALUES (1,1),(2,2);
|
|||
|
|
INSERT INTO t2 VALUES (2,2),(3,3);
|
|||
|
|
select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
|
|||
|
|
where collation(t2.a) = _utf8'binary' order by t1.a,t2.a;
|
|||
|
|
a b a b
|
|||
|
|
1 1 NULL NULL
|
|||
|
|
2 2 2 2
|
|||
|
|
select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
|
|||
|
|
where charset(t2.a) = _utf8'binary' order by t1.a,t2.a;
|
|||
|
|
a b a b
|
|||
|
|
1 1 NULL NULL
|
|||
|
|
2 2 2 2
|
|||
|
|
select t1.*,t2.* from t1 left join t2 on (t1.b=t2.b)
|
|||
|
|
where coercibility(t2.a) = 2 order by t1.a,t2.a;
|
|||
|
|
a b a b
|
|||
|
|
1 1 NULL NULL
|
|||
|
|
2 2 2 2
|
|||
|
|
DROP TABLE t1, t2;
|
|||
|
|
select SUBSTR('abcdefg',3,2);
|
|||
|
|
SUBSTR('abcdefg',3,2)
|
|||
|
|
cd
|
|||
|
|
select SUBSTRING('abcdefg',3,2);
|
|||
|
|
SUBSTRING('abcdefg',3,2)
|
|||
|
|
cd
|
|||
|
|
select SUBSTR('abcdefg',-3,2) FROM DUAL;
|
|||
|
|
SUBSTR('abcdefg',-3,2)
|
|||
|
|
ef
|
|||
|
|
select SUBSTR('abcdefg',-1,5) FROM DUAL;
|
|||
|
|
SUBSTR('abcdefg',-1,5)
|
|||
|
|
g
|
|||
|
|
select SUBSTR('abcdefg',0,0) FROM DUAL;
|
|||
|
|
SUBSTR('abcdefg',0,0)
|
|||
|
|
|
|||
|
|
select SUBSTR('abcdefg',-1,-1) FROM DUAL;
|
|||
|
|
SUBSTR('abcdefg',-1,-1)
|
|||
|
|
|
|||
|
|
select SUBSTR('abcdefg',1,-1) FROM DUAL;
|
|||
|
|
SUBSTR('abcdefg',1,-1)
|
|||
|
|
|
|||
|
|
create table t7 (s1 char);
|
|||
|
|
select * from t7
|
|||
|
|
where concat(s1 collate latin1_general_ci,s1 collate latin1_swedish_ci) = 'AA';
|
|||
|
|
ERROR HY000: Illegal mix of collations (latin1_general_ci,EXPLICIT) and (latin1_swedish_ci,EXPLICIT) for operation 'concat'
|
|||
|
|
drop table t7;
|
|||
|
|
select substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2),substring_index("1abcd;2abcd;3abcd;4abcd", ';', -2);
|
|||
|
|
substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2) substring_index("1abcd;2abcd;3abcd;4abcd", ';', -2)
|
|||
|
|
1abcd;2abcd 3abcd;4abcd
|
|||
|
|
explain extended select md5('hello');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select md5('hello') AS `md5('hello')`
|
|||
|
|
explain extended select sha('abc');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select sha('abc') AS `sha('abc')`
|
|||
|
|
explain extended select sha1('abc');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select sha('abc') AS `sha1('abc')`
|
|||
|
|
explain extended select soundex('');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select soundex('') AS `soundex('')`
|
|||
|
|
explain extended select 'mood' sounds like 'mud';
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select (soundex('mood') = soundex('mud')) AS `'mood' sounds like 'mud'`
|
|||
|
|
explain extended select aes_decrypt(aes_encrypt('abc','1'),'1');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select aes_decrypt(aes_encrypt('abc','1'),'1') AS `aes_decrypt(aes_encrypt('abc','1'),'1')`
|
|||
|
|
explain extended select concat('*',space(5),'*');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select concat('*',repeat(' ',5),'*') AS `concat('*',space(5),'*')`
|
|||
|
|
explain extended select reverse('abc');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select reverse('abc') AS `reverse('abc')`
|
|||
|
|
explain extended select rpad('a',4,'1');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select rpad('a',4,'1') AS `rpad('a',4,'1')`
|
|||
|
|
explain extended select lpad('a',4,'1');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select lpad('a',4,'1') AS `lpad('a',4,'1')`
|
|||
|
|
explain extended select concat_ws(',','',NULL,'a');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select concat_ws(',','',NULL,'a') AS `concat_ws(',','',NULL,'a')`
|
|||
|
|
explain extended select make_set(255,_latin2'a', _latin2'b', _latin2'c');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select make_set(255,_latin2'a',_latin2'b',_latin2'c') AS `make_set(255,_latin2'a', _latin2'b', _latin2'c')`
|
|||
|
|
explain extended select elt(2,1);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select elt(2,1) AS `elt(2,1)`
|
|||
|
|
explain extended select locate("a","b",2);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select locate('a','b',2) AS `locate("a","b",2)`
|
|||
|
|
explain extended select format(130,10);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select format(130,10) AS `format(130,10)`
|
|||
|
|
explain extended select char(0);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select char(0) AS `char(0)`
|
|||
|
|
explain extended select conv(130,16,10);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select conv(130,16,10) AS `conv(130,16,10)`
|
|||
|
|
explain extended select hex(130);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select hex(130) AS `hex(130)`
|
|||
|
|
explain extended select binary 'HE';
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select cast('HE' as char charset binary) AS `binary 'HE'`
|
|||
|
|
explain extended select export_set(255,_latin2'y', _latin2'n', _latin2' ');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select export_set(255,_latin2'y',_latin2'n',_latin2' ') AS `export_set(255,_latin2'y', _latin2'n', _latin2' ')`
|
|||
|
|
explain extended select FIELD('b' COLLATE latin1_bin,'A','B');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select field(('b' collate latin1_bin),'A','B') AS `FIELD('b' COLLATE latin1_bin,'A','B')`
|
|||
|
|
explain extended select FIND_IN_SET(_latin1'B', _latin1'a,b,c,d');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select find_in_set(_latin1'B',_latin1'a,b,c,d') AS `FIND_IN_SET(_latin1'B', _latin1'a,b,c,d')`
|
|||
|
|
explain extended select collation(conv(130,16,10));
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select collation(conv(130,16,10)) AS `collation(conv(130,16,10))`
|
|||
|
|
explain extended select coercibility(conv(130,16,10));
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select coercibility(conv(130,16,10)) AS `coercibility(conv(130,16,10))`
|
|||
|
|
explain extended select length('\n\t\r\b\0\_\%\\');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select length('\n \r\0\\_\\%\\') AS `length('\n\t\r\b\0\_\%\\')`
|
|||
|
|
explain extended select bit_length('\n\t\r\b\0\_\%\\');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select bit_length('\n \r\0\\_\\%\\') AS `bit_length('\n\t\r\b\0\_\%\\')`
|
|||
|
|
explain extended select bit_length('\n\t\r\b\0\_\%\\');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select bit_length('\n \r\0\\_\\%\\') AS `bit_length('\n\t\r\b\0\_\%\\')`
|
|||
|
|
explain extended select concat('monty',' was here ','again');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select concat('monty',' was here ','again') AS `concat('monty',' was here ','again')`
|
|||
|
|
explain extended select length('hello');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select length('hello') AS `length('hello')`
|
|||
|
|
explain extended select char(ascii('h'));
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select char(ascii('h')) AS `char(ascii('h'))`
|
|||
|
|
explain extended select ord('h');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select ord('h') AS `ord('h')`
|
|||
|
|
explain extended select quote(1/0);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select quote((1 / 0)) AS `quote(1/0)`
|
|||
|
|
explain extended select crc32("123");
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select crc32('123') AS `crc32("123")`
|
|||
|
|
explain extended select replace('aaaa','a','b');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select replace('aaaa','a','b') AS `replace('aaaa','a','b')`
|
|||
|
|
explain extended select insert('txs',2,1,'hi');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select insert('txs',2,1,'hi') AS `insert('txs',2,1,'hi')`
|
|||
|
|
explain extended select left(_latin2'a',1);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select left(_latin2'a',1) AS `left(_latin2'a',1)`
|
|||
|
|
explain extended select right(_latin2'a',1);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select right(_latin2'a',1) AS `right(_latin2'a',1)`
|
|||
|
|
explain extended select lcase(_latin2'a');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select lcase(_latin2'a') AS `lcase(_latin2'a')`
|
|||
|
|
explain extended select ucase(_latin2'a');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select ucase(_latin2'a') AS `ucase(_latin2'a')`
|
|||
|
|
explain extended select SUBSTR('abcdefg',3,2);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select substr('abcdefg',3,2) AS `SUBSTR('abcdefg',3,2)`
|
|||
|
|
explain extended select substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select substring_index('1abcd;2abcd;3abcd;4abcd',';',2) AS `substring_index("1abcd;2abcd;3abcd;4abcd", ';', 2)`
|
|||
|
|
explain extended select trim(_latin2' a ');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select trim(_latin2' a ') AS `trim(_latin2' a ')`
|
|||
|
|
explain extended select ltrim(_latin2' a ');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select ltrim(_latin2' a ') AS `ltrim(_latin2' a ')`
|
|||
|
|
explain extended select rtrim(_latin2' a ');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select rtrim(_latin2' a ') AS `rtrim(_latin2' a ')`
|
|||
|
|
explain extended select decode(encode(repeat("a",100000),"monty"),"monty");
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE NULL NULL NULL NULL NULL NULL NULL NULL No tables used
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select decode(encode(repeat('a',100000),'monty'),'monty') AS `decode(encode(repeat("a",100000),"monty"),"monty")`
|
|||
|
|
SELECT lpad(12345, 5, "#");
|
|||
|
|
lpad(12345, 5, "#")
|
|||
|
|
12345
|
|||
|
|
SELECT conv(71, 10, 36), conv('1Z', 36, 10);
|
|||
|
|
conv(71, 10, 36) conv('1Z', 36, 10)
|
|||
|
|
1Z 71
|
|||
|
|
SELECT conv(71, 10, 37), conv('1Z', 37, 10), conv(0,1,10),conv(0,0,10), conv(0,-1,10);
|
|||
|
|
conv(71, 10, 37) conv('1Z', 37, 10) conv(0,1,10) conv(0,0,10) conv(0,-1,10)
|
|||
|
|
NULL NULL NULL NULL NULL
|
|||
|
|
create table t1 (id int(1), str varchar(10)) DEFAULT CHARSET=utf8;
|
|||
|
|
insert into t1 values (1,'aaaaaaaaaa'), (2,'bbbbbbbbbb');
|
|||
|
|
create table t2 (id int(1), str varchar(10)) DEFAULT CHARSET=utf8;
|
|||
|
|
insert into t2 values (1,'cccccccccc'), (2,'dddddddddd');
|
|||
|
|
select substring(concat(t1.str, t2.str), 1, 15) "name" from t1, t2
|
|||
|
|
where t2.id=t1.id order by name;
|
|||
|
|
name
|
|||
|
|
aaaaaaaaaaccccc
|
|||
|
|
bbbbbbbbbbddddd
|
|||
|
|
drop table t1, t2;
|
|||
|
|
create table t1 (c1 INT, c2 INT UNSIGNED);
|
|||
|
|
insert into t1 values ('21474836461','21474836461');
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1264 Out of range value for column 'c1' at row 1
|
|||
|
|
Warning 1264 Out of range value for column 'c2' at row 1
|
|||
|
|
insert into t1 values ('-21474836461','-21474836461');
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1264 Out of range value for column 'c1' at row 1
|
|||
|
|
Warning 1264 Out of range value for column 'c2' at row 1
|
|||
|
|
show warnings;
|
|||
|
|
Level Code Message
|
|||
|
|
Warning 1264 Out of range value for column 'c1' at row 1
|
|||
|
|
Warning 1264 Out of range value for column 'c2' at row 1
|
|||
|
|
select * from t1;
|
|||
|
|
c1 c2
|
|||
|
|
2147483647 4294967295
|
|||
|
|
-2147483648 0
|
|||
|
|
drop table t1;
|
|||
|
|
select left(1234, 3) + 0;
|
|||
|
|
left(1234, 3) + 0
|
|||
|
|
123
|
|||
|
|
create table t1 (a int not null primary key, b varchar(40), c datetime);
|
|||
|
|
insert into t1 (a,b,c) values (1,'Tom','2004-12-10 12:13:14'),(2,'ball games','2004-12-10 12:13:14'), (3,'Basil','2004-12-10 12:13:14'), (4,'Dean','2004-12-10 12:13:14'),(5,'Ellis','2004-12-10 12:13:14'), (6,'Serg','2004-12-10 12:13:14'), (7,'Sergei','2004-12-10 12:13:14'),(8,'Georg','2004-12-10 12:13:14'),(9,'Salle','2004-12-10 12:13:14'),(10,'Sinisa','2004-12-10 12:13:14');
|
|||
|
|
select count(*) as total, left(c,10) as reg from t1 group by reg order by reg desc limit 0,12;
|
|||
|
|
total reg
|
|||
|
|
10 2004-12-10
|
|||
|
|
drop table t1;
|
|||
|
|
select trim(null from 'kate') as "must_be_null";
|
|||
|
|
must_be_null
|
|||
|
|
NULL
|
|||
|
|
select trim('xyz' from null) as "must_be_null";
|
|||
|
|
must_be_null
|
|||
|
|
NULL
|
|||
|
|
select trim(leading NULL from 'kate') as "must_be_null";
|
|||
|
|
must_be_null
|
|||
|
|
NULL
|
|||
|
|
select trim(trailing NULL from 'xyz') as "must_be_null";
|
|||
|
|
must_be_null
|
|||
|
|
NULL
|
|||
|
|
CREATE TABLE t1 (
|
|||
|
|
id int(11) NOT NULL auto_increment,
|
|||
|
|
a bigint(20) unsigned default NULL,
|
|||
|
|
PRIMARY KEY (id)
|
|||
|
|
) ENGINE=MyISAM;
|
|||
|
|
INSERT INTO t1 VALUES
|
|||
|
|
('0','16307858876001849059');
|
|||
|
|
SELECT CONV('e251273eb74a8ee3', 16, 10);
|
|||
|
|
CONV('e251273eb74a8ee3', 16, 10)
|
|||
|
|
16307858876001849059
|
|||
|
|
EXPLAIN
|
|||
|
|
SELECT id
|
|||
|
|
FROM t1
|
|||
|
|
WHERE a = 16307858876001849059;
|
|||
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|||
|
|
1 SIMPLE t1 system NULL NULL NULL NULL 1
|
|||
|
|
EXPLAIN
|
|||
|
|
SELECT id
|
|||
|
|
FROM t1
|
|||
|
|
WHERE a = CONV('e251273eb74a8ee3', 16, 10);
|
|||
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|||
|
|
1 SIMPLE t1 system NULL NULL NULL NULL 1
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
SELECT CHAR(NULL,121,83,81,'76') as my_column;
|
|||
|
|
my_column
|
|||
|
|
ySQL
|
|||
|
|
SELECT CHAR_LENGTH(CHAR(NULL,121,83,81,'76')) as my_column;
|
|||
|
|
my_column
|
|||
|
|
4
|
|||
|
|
CREATE TABLE t1 (id int PRIMARY KEY, str char(255) NOT NULL);
|
|||
|
|
CREATE TABLE t2 (id int NOT NULL UNIQUE);
|
|||
|
|
INSERT INTO t2 VALUES (1),(2);
|
|||
|
|
INSERT INTO t1 VALUES (1, aes_encrypt('foo', 'bar'));
|
|||
|
|
INSERT INTO t1 VALUES (2, 'not valid');
|
|||
|
|
SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id;
|
|||
|
|
id aes_decrypt(str, 'bar')
|
|||
|
|
1 foo
|
|||
|
|
2 NULL
|
|||
|
|
SELECT t1.id, aes_decrypt(str, 'bar') FROM t1, t2 WHERE t1.id = t2.id
|
|||
|
|
ORDER BY t1.id;
|
|||
|
|
id aes_decrypt(str, 'bar')
|
|||
|
|
1 foo
|
|||
|
|
2 NULL
|
|||
|
|
DROP TABLE t1, t2;
|
|||
|
|
select field(0,NULL,1,0), field("",NULL,"bar",""), field(0.0,NULL,1.0,0.0);
|
|||
|
|
field(0,NULL,1,0) field("",NULL,"bar","") field(0.0,NULL,1.0,0.0)
|
|||
|
|
3 3 3
|
|||
|
|
select field(NULL,1,2,NULL), field(NULL,1,2,0);
|
|||
|
|
field(NULL,1,2,NULL) field(NULL,1,2,0)
|
|||
|
|
0 0
|
|||
|
|
CREATE TABLE t1 (str varchar(20) PRIMARY KEY);
|
|||
|
|
CREATE TABLE t2 (num int primary key);
|
|||
|
|
INSERT INTO t1 VALUES ('notnumber');
|
|||
|
|
INSERT INTO t2 VALUES (0), (1);
|
|||
|
|
SELECT * FROM t1, t2 WHERE num=str;
|
|||
|
|
str num
|
|||
|
|
notnumber 0
|
|||
|
|
SELECT * FROM t1, t2 WHERE num=substring(str from 1 for 6);
|
|||
|
|
str num
|
|||
|
|
notnumber 0
|
|||
|
|
DROP TABLE t1,t2;
|
|||
|
|
CREATE TABLE t1(
|
|||
|
|
id int(11) NOT NULL auto_increment,
|
|||
|
|
pc int(11) NOT NULL default '0',
|
|||
|
|
title varchar(20) default NULL,
|
|||
|
|
PRIMARY KEY (id)
|
|||
|
|
);
|
|||
|
|
INSERT INTO t1 VALUES
|
|||
|
|
(1, 0, 'Main'),
|
|||
|
|
(2, 1, 'Toys'),
|
|||
|
|
(3, 1, 'Games');
|
|||
|
|
SELECT t1.id, CONCAT_WS('->', t3.title, t2.title, t1.title) as col1
|
|||
|
|
FROM t1 LEFT JOIN t1 AS t2 ON t1.pc=t2.id
|
|||
|
|
LEFT JOIN t1 AS t3 ON t2.pc=t3.id;
|
|||
|
|
id col1
|
|||
|
|
1 Main
|
|||
|
|
2 Main->Toys
|
|||
|
|
3 Main->Games
|
|||
|
|
SELECT t1.id, CONCAT_WS('->', t3.title, t2.title, t1.title) as col1
|
|||
|
|
FROM t1 LEFT JOIN t1 AS t2 ON t1.pc=t2.id
|
|||
|
|
LEFT JOIN t1 AS t3 ON t2.pc=t3.id
|
|||
|
|
WHERE CONCAT_WS('->', t3.title, t2.title, t1.title) LIKE '%Toys%';
|
|||
|
|
id col1
|
|||
|
|
2 Main->Toys
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE TABLE t1(
|
|||
|
|
trackid int(10) unsigned NOT NULL auto_increment,
|
|||
|
|
trackname varchar(100) NOT NULL default '',
|
|||
|
|
PRIMARY KEY (trackid)
|
|||
|
|
);
|
|||
|
|
CREATE TABLE t2(
|
|||
|
|
artistid int(10) unsigned NOT NULL auto_increment,
|
|||
|
|
artistname varchar(100) NOT NULL default '',
|
|||
|
|
PRIMARY KEY (artistid)
|
|||
|
|
);
|
|||
|
|
CREATE TABLE t3(
|
|||
|
|
trackid int(10) unsigned NOT NULL,
|
|||
|
|
artistid int(10) unsigned NOT NULL,
|
|||
|
|
PRIMARY KEY (trackid,artistid)
|
|||
|
|
);
|
|||
|
|
INSERT INTO t1 VALUES (1, 'April In Paris'), (2, 'Autumn In New York');
|
|||
|
|
INSERT INTO t2 VALUES (1, 'Vernon Duke');
|
|||
|
|
INSERT INTO t3 VALUES (1,1);
|
|||
|
|
SELECT CONCAT_WS(' ', trackname, artistname) trackname, artistname
|
|||
|
|
FROM t1 LEFT JOIN t3 ON t1.trackid=t3.trackid
|
|||
|
|
LEFT JOIN t2 ON t2.artistid=t3.artistid
|
|||
|
|
WHERE CONCAT_WS(' ', trackname, artistname) LIKE '%In%';
|
|||
|
|
trackname artistname
|
|||
|
|
April In Paris Vernon Duke Vernon Duke
|
|||
|
|
Autumn In New York NULL
|
|||
|
|
DROP TABLE t1,t2,t3;
|
|||
|
|
create table t1 (b varchar(5));
|
|||
|
|
insert t1 values ('ab'), ('abc'), ('abcd'), ('abcde');
|
|||
|
|
select *,substring(b,1),substring(b,-1),substring(b,-2),substring(b,-3),substring(b,-4),substring(b,-5) from t1;
|
|||
|
|
b substring(b,1) substring(b,-1) substring(b,-2) substring(b,-3) substring(b,-4) substring(b,-5)
|
|||
|
|
ab ab b ab
|
|||
|
|
abc abc c bc abc
|
|||
|
|
abcd abcd d cd bcd abcd
|
|||
|
|
abcde abcde e de cde bcde abcde
|
|||
|
|
select * from (select *,substring(b,1),substring(b,-1),substring(b,-2),substring(b,-3),substring(b,-4),substring(b,-5) from t1) t;
|
|||
|
|
b substring(b,1) substring(b,-1) substring(b,-2) substring(b,-3) substring(b,-4) substring(b,-5)
|
|||
|
|
ab ab b ab
|
|||
|
|
abc abc c bc abc
|
|||
|
|
abcd abcd d cd bcd abcd
|
|||
|
|
abcde abcde e de cde bcde abcde
|
|||
|
|
drop table t1;
|
|||
|
|
select hex(29223372036854775809), hex(-29223372036854775809);
|
|||
|
|
hex(29223372036854775809) hex(-29223372036854775809)
|
|||
|
|
FFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFF
|
|||
|
|
create table t1 (i int);
|
|||
|
|
insert into t1 values (1000000000),(1);
|
|||
|
|
select lpad(i, 7, ' ') as t from t1;
|
|||
|
|
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
|||
|
|
def t 253 7 7 Y 128 31 63
|
|||
|
|
t
|
|||
|
|
1000000
|
|||
|
|
1
|
|||
|
|
select rpad(i, 7, ' ') as t from t1;
|
|||
|
|
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
|||
|
|
def t 253 7 7 Y 128 31 63
|
|||
|
|
t
|
|||
|
|
1000000
|
|||
|
|
1
|
|||
|
|
drop table t1;
|
|||
|
|
select load_file("lkjlkj");
|
|||
|
|
load_file("lkjlkj")
|
|||
|
|
NULL
|
|||
|
|
select ifnull(load_file("lkjlkj"),"it's null");
|
|||
|
|
ifnull(load_file("lkjlkj"),"it's null")
|
|||
|
|
it's null
|
|||
|
|
create table t1 (f1 varchar(4), f2 varchar(64), unique key k1 (f1,f2));
|
|||
|
|
insert into t1 values ( 'test',md5('test')), ('test', sha('test'));
|
|||
|
|
select * from t1 where f1='test' and (f2= md5("test") or f2= md5("TEST"));
|
|||
|
|
f1 f2
|
|||
|
|
test 098f6bcd4621d373cade4e832627b4f6
|
|||
|
|
select * from t1 where f1='test' and (f2= md5("TEST") or f2= md5("test"));
|
|||
|
|
f1 f2
|
|||
|
|
test 098f6bcd4621d373cade4e832627b4f6
|
|||
|
|
select * from t1 where f1='test' and (f2= sha("test") or f2= sha("TEST"));
|
|||
|
|
f1 f2
|
|||
|
|
test a94a8fe5ccb19ba61c4c0873d391e987982fbbd3
|
|||
|
|
select * from t1 where f1='test' and (f2= sha("TEST") or f2= sha("test"));
|
|||
|
|
f1 f2
|
|||
|
|
test a94a8fe5ccb19ba61c4c0873d391e987982fbbd3
|
|||
|
|
drop table t1;
|
|||
|
|
CREATE TABLE t1 (a varchar(10));
|
|||
|
|
INSERT INTO t1 VALUES ('abc'), ('xyz');
|
|||
|
|
SELECT a, CONCAT(a,' ',a) AS c FROM t1
|
|||
|
|
HAVING LEFT(c,LENGTH(c)-INSTR(REVERSE(c)," ")) = a;
|
|||
|
|
a c
|
|||
|
|
abc abc abc
|
|||
|
|
xyz xyz xyz
|
|||
|
|
SELECT a, CONCAT(a,' ',a) AS c FROM t1
|
|||
|
|
HAVING LEFT(CONCAT(a,' ',a),
|
|||
|
|
LENGTH(CONCAT(a,' ',a))-
|
|||
|
|
INSTR(REVERSE(CONCAT(a,' ',a))," ")) = a;
|
|||
|
|
a c
|
|||
|
|
abc abc abc
|
|||
|
|
xyz xyz xyz
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE TABLE t1 (s varchar(10));
|
|||
|
|
INSERT INTO t1 VALUES ('yadda'), ('yaddy');
|
|||
|
|
EXPLAIN EXTENDED SELECT s FROM t1 WHERE TRIM(s) > 'ab';
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select `test`.`t1`.`s` AS `s` from `test`.`t1` where (trim(`test`.`t1`.`s`) > 'ab')
|
|||
|
|
EXPLAIN EXTENDED SELECT s FROM t1 WHERE TRIM('y' FROM s) > 'ab';
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select `test`.`t1`.`s` AS `s` from `test`.`t1` where (trim(both 'y' from `test`.`t1`.`s`) > 'ab')
|
|||
|
|
EXPLAIN EXTENDED SELECT s FROM t1 WHERE TRIM(LEADING 'y' FROM s) > 'ab';
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select `test`.`t1`.`s` AS `s` from `test`.`t1` where (trim(leading 'y' from `test`.`t1`.`s`) > 'ab')
|
|||
|
|
EXPLAIN EXTENDED SELECT s FROM t1 WHERE TRIM(TRAILING 'y' FROM s) > 'ab';
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select `test`.`t1`.`s` AS `s` from `test`.`t1` where (trim(trailing 'y' from `test`.`t1`.`s`) > 'ab')
|
|||
|
|
EXPLAIN EXTENDED SELECT s FROM t1 WHERE TRIM(BOTH 'y' FROM s) > 'ab';
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t1 ALL NULL NULL NULL NULL 2 100.00 Using where
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select `test`.`t1`.`s` AS `s` from `test`.`t1` where (trim(both 'y' from `test`.`t1`.`s`) > 'ab')
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
create table t1(f1 varchar(4));
|
|||
|
|
explain extended select encode(f1,'zxcv') as 'enc' from t1;
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select encode(NULL,'zxcv') AS `enc` from `test`.`t1`
|
|||
|
|
explain extended select decode(f1,'zxcv') as 'enc' from t1;
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t1 system NULL NULL NULL NULL 0 0.00 const row not found
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select decode(NULL,'zxcv') AS `enc` from `test`.`t1`
|
|||
|
|
drop table t1;
|
|||
|
|
create table t1 (a bigint not null)engine=myisam;
|
|||
|
|
insert into t1 set a = 1024*1024*1024*4;
|
|||
|
|
delete from t1 order by (inet_ntoa(a)) desc limit 10;
|
|||
|
|
drop table t1;
|
|||
|
|
create table t1 (a char(36) not null)engine=myisam;
|
|||
|
|
insert ignore into t1 set a = ' ';
|
|||
|
|
insert ignore into t1 set a = ' ';
|
|||
|
|
select * from t1 order by (oct(a));
|
|||
|
|
a
|
|||
|
|
|
|||
|
|
|
|||
|
|
drop table t1;
|
|||
|
|
End of 4.1 tests
|
|||
|
|
create table t1 (d decimal default null);
|
|||
|
|
insert into t1 values (null);
|
|||
|
|
select format(d, 2) from t1;
|
|||
|
|
format(d, 2)
|
|||
|
|
NULL
|
|||
|
|
drop table t1;
|
|||
|
|
create table t1 (c varchar(40));
|
|||
|
|
insert into t1 values ('y,abc'),('y,abc');
|
|||
|
|
select c, substring_index(lcase(c), @q:=',', -1) as res from t1;
|
|||
|
|
c res
|
|||
|
|
y,abc abc
|
|||
|
|
y,abc abc
|
|||
|
|
drop table t1;
|
|||
|
|
select cast(rtrim(' 20.06 ') as decimal(19,2));
|
|||
|
|
cast(rtrim(' 20.06 ') as decimal(19,2))
|
|||
|
|
20.06
|
|||
|
|
select cast(ltrim(' 20.06 ') as decimal(19,2));
|
|||
|
|
cast(ltrim(' 20.06 ') as decimal(19,2))
|
|||
|
|
20.06
|
|||
|
|
select cast(rtrim(ltrim(' 20.06 ')) as decimal(19,2));
|
|||
|
|
cast(rtrim(ltrim(' 20.06 ')) as decimal(19,2))
|
|||
|
|
20.06
|
|||
|
|
select conv("18383815659218730760",10,10) + 0;
|
|||
|
|
conv("18383815659218730760",10,10) + 0
|
|||
|
|
1.83838156592187e+19
|
|||
|
|
select "18383815659218730760" + 0;
|
|||
|
|
"18383815659218730760" + 0
|
|||
|
|
1.83838156592187e+19
|
|||
|
|
CREATE TABLE t1 (code varchar(10));
|
|||
|
|
INSERT INTO t1 VALUES ('a12'), ('A12'), ('a13');
|
|||
|
|
SELECT ASCII(code), code FROM t1 WHERE code='A12';
|
|||
|
|
ASCII(code) code
|
|||
|
|
97 a12
|
|||
|
|
65 A12
|
|||
|
|
SELECT ASCII(code), code FROM t1 WHERE code='A12' AND ASCII(code)=65;
|
|||
|
|
ASCII(code) code
|
|||
|
|
65 A12
|
|||
|
|
INSERT INTO t1 VALUES ('a12 '), ('A12 ');
|
|||
|
|
SELECT LENGTH(code), code FROM t1 WHERE code='A12';
|
|||
|
|
LENGTH(code) code
|
|||
|
|
3 a12
|
|||
|
|
3 A12
|
|||
|
|
4 a12
|
|||
|
|
5 A12
|
|||
|
|
SELECT LENGTH(code), code FROM t1 WHERE code='A12' AND LENGTH(code)=5;
|
|||
|
|
LENGTH(code) code
|
|||
|
|
5 A12
|
|||
|
|
ALTER TABLE t1 ADD INDEX (code);
|
|||
|
|
CREATE TABLE t2 (id varchar(10) PRIMARY KEY);
|
|||
|
|
INSERT INTO t2 VALUES ('a11'), ('a12'), ('a13'), ('a14');
|
|||
|
|
SELECT * FROM t1 INNER JOIN t2 ON t1.code=t2.id
|
|||
|
|
WHERE t2.id='a12' AND (LENGTH(code)=5 OR code < 'a00');
|
|||
|
|
code id
|
|||
|
|
A12 a12
|
|||
|
|
EXPLAIN EXTENDED
|
|||
|
|
SELECT * FROM t1 INNER JOIN t2 ON code=id
|
|||
|
|
WHERE id='a12' AND (LENGTH(code)=5 OR code < 'a00');
|
|||
|
|
id select_type table type possible_keys key key_len ref rows filtered Extra
|
|||
|
|
1 SIMPLE t2 const PRIMARY PRIMARY 12 const 1 100.00 Using index
|
|||
|
|
1 SIMPLE t1 ref code code 13 const 3 100.00 Using where; Using index
|
|||
|
|
Warnings:
|
|||
|
|
Note 1003 select `test`.`t1`.`code` AS `code`,'a12' AS `id` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`code` = 'a12') and (length(`test`.`t1`.`code`) = 5))
|
|||
|
|
DROP TABLE t1,t2;
|
|||
|
|
select encode(NULL, NULL);
|
|||
|
|
encode(NULL, NULL)
|
|||
|
|
NULL
|
|||
|
|
select encode("data", NULL);
|
|||
|
|
encode("data", NULL)
|
|||
|
|
NULL
|
|||
|
|
select encode(NULL, "password");
|
|||
|
|
encode(NULL, "password")
|
|||
|
|
NULL
|
|||
|
|
select decode(NULL, NULL);
|
|||
|
|
decode(NULL, NULL)
|
|||
|
|
NULL
|
|||
|
|
select decode("data", NULL);
|
|||
|
|
decode("data", NULL)
|
|||
|
|
NULL
|
|||
|
|
select decode(NULL, "password");
|
|||
|
|
decode(NULL, "password")
|
|||
|
|
NULL
|
|||
|
|
select format(NULL, NULL);
|
|||
|
|
format(NULL, NULL)
|
|||
|
|
NULL
|
|||
|
|
select format(pi(), NULL);
|
|||
|
|
format(pi(), NULL)
|
|||
|
|
NULL
|
|||
|
|
select format(NULL, 2);
|
|||
|
|
format(NULL, 2)
|
|||
|
|
NULL
|
|||
|
|
select benchmark(NULL, NULL);
|
|||
|
|
benchmark(NULL, NULL)
|
|||
|
|
NULL
|
|||
|
|
select benchmark(0, NULL);
|
|||
|
|
benchmark(0, NULL)
|
|||
|
|
0
|
|||
|
|
select benchmark(100, NULL);
|
|||
|
|
benchmark(100, NULL)
|
|||
|
|
0
|
|||
|
|
select benchmark(NULL, 1+1);
|
|||
|
|
benchmark(NULL, 1+1)
|
|||
|
|
NULL
|
|||
|
|
select benchmark(-1, 1);
|
|||
|
|
benchmark(-1, 1)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1411 Incorrect count value: '-1' for function benchmark
|
|||
|
|
set @password="password";
|
|||
|
|
set @my_data="clear text to encode";
|
|||
|
|
select md5(encode(@my_data, "password"));
|
|||
|
|
md5(encode(@my_data, "password"))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
select md5(encode(@my_data, _utf8 "password"));
|
|||
|
|
md5(encode(@my_data, _utf8 "password"))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
select md5(encode(@my_data, binary "password"));
|
|||
|
|
md5(encode(@my_data, binary "password"))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
select md5(encode(@my_data, _latin1 "password"));
|
|||
|
|
md5(encode(@my_data, _latin1 "password"))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
select md5(encode(@my_data, _koi8r "password"));
|
|||
|
|
md5(encode(@my_data, _koi8r "password"))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
select md5(encode(@my_data, (select "password" from dual)));
|
|||
|
|
md5(encode(@my_data, (select "password" from dual)))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
select md5(encode(@my_data, concat("pass", "word")));
|
|||
|
|
md5(encode(@my_data, concat("pass", "word")))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
select md5(encode(@my_data, @password));
|
|||
|
|
md5(encode(@my_data, @password))
|
|||
|
|
44320fd2b4a0ec92faa2da2122def917
|
|||
|
|
set @my_data="binary encoded data";
|
|||
|
|
select md5(decode(@my_data, "password"));
|
|||
|
|
md5(decode(@my_data, "password"))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
select md5(decode(@my_data, _utf8 "password"));
|
|||
|
|
md5(decode(@my_data, _utf8 "password"))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
select md5(decode(@my_data, binary "password"));
|
|||
|
|
md5(decode(@my_data, binary "password"))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
select md5(decode(@my_data, _latin1 "password"));
|
|||
|
|
md5(decode(@my_data, _latin1 "password"))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
select md5(decode(@my_data, _koi8r "password"));
|
|||
|
|
md5(decode(@my_data, _koi8r "password"))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
select md5(decode(@my_data, (select "password" from dual)));
|
|||
|
|
md5(decode(@my_data, (select "password" from dual)))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
select md5(decode(@my_data, concat("pass", "word")));
|
|||
|
|
md5(decode(@my_data, concat("pass", "word")))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
select md5(decode(@my_data, @password));
|
|||
|
|
md5(decode(@my_data, @password))
|
|||
|
|
5bea8c394368dbc03b76684483b7756b
|
|||
|
|
set @dec=5;
|
|||
|
|
select format(pi(), (1+1));
|
|||
|
|
format(pi(), (1+1))
|
|||
|
|
3.14
|
|||
|
|
select format(pi(), (select 3 from dual));
|
|||
|
|
format(pi(), (select 3 from dual))
|
|||
|
|
3.142
|
|||
|
|
select format(pi(), @dec);
|
|||
|
|
format(pi(), @dec)
|
|||
|
|
3.14159
|
|||
|
|
set @bench_count=10;
|
|||
|
|
select benchmark(10, pi());
|
|||
|
|
benchmark(10, pi())
|
|||
|
|
0
|
|||
|
|
select benchmark(5+5, pi());
|
|||
|
|
benchmark(5+5, pi())
|
|||
|
|
0
|
|||
|
|
select benchmark((select 10 from dual), pi());
|
|||
|
|
benchmark((select 10 from dual), pi())
|
|||
|
|
0
|
|||
|
|
select benchmark(@bench_count, pi());
|
|||
|
|
benchmark(@bench_count, pi())
|
|||
|
|
0
|
|||
|
|
select locate('he','hello',-2);
|
|||
|
|
locate('he','hello',-2)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',-4294967295);
|
|||
|
|
locate('lo','hello',-4294967295)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',4294967295);
|
|||
|
|
locate('lo','hello',4294967295)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',-4294967296);
|
|||
|
|
locate('lo','hello',-4294967296)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',4294967296);
|
|||
|
|
locate('lo','hello',4294967296)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',-4294967297);
|
|||
|
|
locate('lo','hello',-4294967297)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',4294967297);
|
|||
|
|
locate('lo','hello',4294967297)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',-18446744073709551615);
|
|||
|
|
locate('lo','hello',-18446744073709551615)
|
|||
|
|
0
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select locate('lo','hello',18446744073709551615);
|
|||
|
|
locate('lo','hello',18446744073709551615)
|
|||
|
|
0
|
|||
|
|
select locate('lo','hello',-18446744073709551616);
|
|||
|
|
locate('lo','hello',-18446744073709551616)
|
|||
|
|
0
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select locate('lo','hello',18446744073709551616);
|
|||
|
|
locate('lo','hello',18446744073709551616)
|
|||
|
|
0
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select locate('lo','hello',-18446744073709551617);
|
|||
|
|
locate('lo','hello',-18446744073709551617)
|
|||
|
|
0
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select locate('lo','hello',18446744073709551617);
|
|||
|
|
locate('lo','hello',18446744073709551617)
|
|||
|
|
0
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select left('hello', 10);
|
|||
|
|
left('hello', 10)
|
|||
|
|
hello
|
|||
|
|
select left('hello', 0);
|
|||
|
|
left('hello', 0)
|
|||
|
|
|
|||
|
|
select left('hello', -1);
|
|||
|
|
left('hello', -1)
|
|||
|
|
|
|||
|
|
select left('hello', -4294967295);
|
|||
|
|
left('hello', -4294967295)
|
|||
|
|
|
|||
|
|
select left('hello', 4294967295);
|
|||
|
|
left('hello', 4294967295)
|
|||
|
|
hello
|
|||
|
|
select left('hello', -4294967296);
|
|||
|
|
left('hello', -4294967296)
|
|||
|
|
|
|||
|
|
select left('hello', 4294967296);
|
|||
|
|
left('hello', 4294967296)
|
|||
|
|
hello
|
|||
|
|
select left('hello', -4294967297);
|
|||
|
|
left('hello', -4294967297)
|
|||
|
|
|
|||
|
|
select left('hello', 4294967297);
|
|||
|
|
left('hello', 4294967297)
|
|||
|
|
hello
|
|||
|
|
select left('hello', -18446744073709551615);
|
|||
|
|
left('hello', -18446744073709551615)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select left('hello', 18446744073709551615);
|
|||
|
|
left('hello', 18446744073709551615)
|
|||
|
|
hello
|
|||
|
|
select left('hello', -18446744073709551616);
|
|||
|
|
left('hello', -18446744073709551616)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select left('hello', 18446744073709551616);
|
|||
|
|
left('hello', 18446744073709551616)
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select left('hello', -18446744073709551617);
|
|||
|
|
left('hello', -18446744073709551617)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select left('hello', 18446744073709551617);
|
|||
|
|
left('hello', 18446744073709551617)
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select right('hello', 10);
|
|||
|
|
right('hello', 10)
|
|||
|
|
hello
|
|||
|
|
select right('hello', 0);
|
|||
|
|
right('hello', 0)
|
|||
|
|
|
|||
|
|
select right('hello', -1);
|
|||
|
|
right('hello', -1)
|
|||
|
|
|
|||
|
|
select right('hello', -4294967295);
|
|||
|
|
right('hello', -4294967295)
|
|||
|
|
|
|||
|
|
select right('hello', 4294967295);
|
|||
|
|
right('hello', 4294967295)
|
|||
|
|
hello
|
|||
|
|
select right('hello', -4294967296);
|
|||
|
|
right('hello', -4294967296)
|
|||
|
|
|
|||
|
|
select right('hello', 4294967296);
|
|||
|
|
right('hello', 4294967296)
|
|||
|
|
hello
|
|||
|
|
select right('hello', -4294967297);
|
|||
|
|
right('hello', -4294967297)
|
|||
|
|
|
|||
|
|
select right('hello', 4294967297);
|
|||
|
|
right('hello', 4294967297)
|
|||
|
|
hello
|
|||
|
|
select right('hello', -18446744073709551615);
|
|||
|
|
right('hello', -18446744073709551615)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select right('hello', 18446744073709551615);
|
|||
|
|
right('hello', 18446744073709551615)
|
|||
|
|
hello
|
|||
|
|
select right('hello', -18446744073709551616);
|
|||
|
|
right('hello', -18446744073709551616)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select right('hello', 18446744073709551616);
|
|||
|
|
right('hello', 18446744073709551616)
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select right('hello', -18446744073709551617);
|
|||
|
|
right('hello', -18446744073709551617)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select right('hello', 18446744073709551617);
|
|||
|
|
right('hello', 18446744073709551617)
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 2, -1);
|
|||
|
|
substring('hello', 2, -1)
|
|||
|
|
|
|||
|
|
select substring('hello', -1, 1);
|
|||
|
|
substring('hello', -1, 1)
|
|||
|
|
o
|
|||
|
|
select substring('hello', -2, 1);
|
|||
|
|
substring('hello', -2, 1)
|
|||
|
|
l
|
|||
|
|
select substring('hello', -4294967295, 1);
|
|||
|
|
substring('hello', -4294967295, 1)
|
|||
|
|
|
|||
|
|
select substring('hello', 4294967295, 1);
|
|||
|
|
substring('hello', 4294967295, 1)
|
|||
|
|
|
|||
|
|
select substring('hello', -4294967296, 1);
|
|||
|
|
substring('hello', -4294967296, 1)
|
|||
|
|
|
|||
|
|
select substring('hello', 4294967296, 1);
|
|||
|
|
substring('hello', 4294967296, 1)
|
|||
|
|
|
|||
|
|
select substring('hello', -4294967297, 1);
|
|||
|
|
substring('hello', -4294967297, 1)
|
|||
|
|
|
|||
|
|
select substring('hello', 4294967297, 1);
|
|||
|
|
substring('hello', 4294967297, 1)
|
|||
|
|
|
|||
|
|
select substring('hello', -18446744073709551615, 1);
|
|||
|
|
substring('hello', -18446744073709551615, 1)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 18446744073709551615, 1);
|
|||
|
|
substring('hello', 18446744073709551615, 1)
|
|||
|
|
|
|||
|
|
select substring('hello', -18446744073709551616, 1);
|
|||
|
|
substring('hello', -18446744073709551616, 1)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 18446744073709551616, 1);
|
|||
|
|
substring('hello', 18446744073709551616, 1)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', -18446744073709551617, 1);
|
|||
|
|
substring('hello', -18446744073709551617, 1)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 18446744073709551617, 1);
|
|||
|
|
substring('hello', 18446744073709551617, 1)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 1, -1);
|
|||
|
|
substring('hello', 1, -1)
|
|||
|
|
|
|||
|
|
select substring('hello', 1, -4294967295);
|
|||
|
|
substring('hello', 1, -4294967295)
|
|||
|
|
|
|||
|
|
select substring('hello', 1, 4294967295);
|
|||
|
|
substring('hello', 1, 4294967295)
|
|||
|
|
hello
|
|||
|
|
select substring('hello', 1, -4294967296);
|
|||
|
|
substring('hello', 1, -4294967296)
|
|||
|
|
|
|||
|
|
select substring('hello', 1, 4294967296);
|
|||
|
|
substring('hello', 1, 4294967296)
|
|||
|
|
hello
|
|||
|
|
select substring('hello', 1, -4294967297);
|
|||
|
|
substring('hello', 1, -4294967297)
|
|||
|
|
|
|||
|
|
select substring('hello', 1, 4294967297);
|
|||
|
|
substring('hello', 1, 4294967297)
|
|||
|
|
hello
|
|||
|
|
select substring('hello', 1, -18446744073709551615);
|
|||
|
|
substring('hello', 1, -18446744073709551615)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 1, 18446744073709551615);
|
|||
|
|
substring('hello', 1, 18446744073709551615)
|
|||
|
|
hello
|
|||
|
|
select substring('hello', 1, -18446744073709551616);
|
|||
|
|
substring('hello', 1, -18446744073709551616)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 1, 18446744073709551616);
|
|||
|
|
substring('hello', 1, 18446744073709551616)
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 1, -18446744073709551617);
|
|||
|
|
substring('hello', 1, -18446744073709551617)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 1, 18446744073709551617);
|
|||
|
|
substring('hello', 1, 18446744073709551617)
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', -1, -1);
|
|||
|
|
substring('hello', -1, -1)
|
|||
|
|
|
|||
|
|
select substring('hello', -4294967295, -4294967295);
|
|||
|
|
substring('hello', -4294967295, -4294967295)
|
|||
|
|
|
|||
|
|
select substring('hello', 4294967295, 4294967295);
|
|||
|
|
substring('hello', 4294967295, 4294967295)
|
|||
|
|
|
|||
|
|
select substring('hello', -4294967296, -4294967296);
|
|||
|
|
substring('hello', -4294967296, -4294967296)
|
|||
|
|
|
|||
|
|
select substring('hello', 4294967296, 4294967296);
|
|||
|
|
substring('hello', 4294967296, 4294967296)
|
|||
|
|
|
|||
|
|
select substring('hello', -4294967297, -4294967297);
|
|||
|
|
substring('hello', -4294967297, -4294967297)
|
|||
|
|
|
|||
|
|
select substring('hello', 4294967297, 4294967297);
|
|||
|
|
substring('hello', 4294967297, 4294967297)
|
|||
|
|
|
|||
|
|
select substring('hello', -18446744073709551615, -18446744073709551615);
|
|||
|
|
substring('hello', -18446744073709551615, -18446744073709551615)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 18446744073709551615, 18446744073709551615);
|
|||
|
|
substring('hello', 18446744073709551615, 18446744073709551615)
|
|||
|
|
|
|||
|
|
select substring('hello', -18446744073709551616, -18446744073709551616);
|
|||
|
|
substring('hello', -18446744073709551616, -18446744073709551616)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 18446744073709551616, 18446744073709551616);
|
|||
|
|
substring('hello', 18446744073709551616, 18446744073709551616)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', -18446744073709551617, -18446744073709551617);
|
|||
|
|
substring('hello', -18446744073709551617, -18446744073709551617)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select substring('hello', 18446744073709551617, 18446744073709551617);
|
|||
|
|
substring('hello', 18446744073709551617, 18446744073709551617)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', -1, 1, 'hi');
|
|||
|
|
insert('hello', -1, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -4294967295, 1, 'hi');
|
|||
|
|
insert('hello', -4294967295, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', 4294967295, 1, 'hi');
|
|||
|
|
insert('hello', 4294967295, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -4294967296, 1, 'hi');
|
|||
|
|
insert('hello', -4294967296, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', 4294967296, 1, 'hi');
|
|||
|
|
insert('hello', 4294967296, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -4294967297, 1, 'hi');
|
|||
|
|
insert('hello', -4294967297, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', 4294967297, 1, 'hi');
|
|||
|
|
insert('hello', 4294967297, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -18446744073709551615, 1, 'hi');
|
|||
|
|
insert('hello', -18446744073709551615, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 18446744073709551615, 1, 'hi');
|
|||
|
|
insert('hello', 18446744073709551615, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -18446744073709551616, 1, 'hi');
|
|||
|
|
insert('hello', -18446744073709551616, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 18446744073709551616, 1, 'hi');
|
|||
|
|
insert('hello', 18446744073709551616, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', -18446744073709551617, 1, 'hi');
|
|||
|
|
insert('hello', -18446744073709551617, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 18446744073709551617, 1, 'hi');
|
|||
|
|
insert('hello', 18446744073709551617, 1, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 1, -1, 'hi');
|
|||
|
|
insert('hello', 1, -1, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, -4294967295, 'hi');
|
|||
|
|
insert('hello', 1, -4294967295, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, 4294967295, 'hi');
|
|||
|
|
insert('hello', 1, 4294967295, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, -4294967296, 'hi');
|
|||
|
|
insert('hello', 1, -4294967296, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, 4294967296, 'hi');
|
|||
|
|
insert('hello', 1, 4294967296, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, -4294967297, 'hi');
|
|||
|
|
insert('hello', 1, -4294967297, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, 4294967297, 'hi');
|
|||
|
|
insert('hello', 1, 4294967297, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, -18446744073709551615, 'hi');
|
|||
|
|
insert('hello', 1, -18446744073709551615, 'hi')
|
|||
|
|
hi
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 1, 18446744073709551615, 'hi');
|
|||
|
|
insert('hello', 1, 18446744073709551615, 'hi')
|
|||
|
|
hi
|
|||
|
|
select insert('hello', 1, -18446744073709551616, 'hi');
|
|||
|
|
insert('hello', 1, -18446744073709551616, 'hi')
|
|||
|
|
hi
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 1, 18446744073709551616, 'hi');
|
|||
|
|
insert('hello', 1, 18446744073709551616, 'hi')
|
|||
|
|
hi
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 1, -18446744073709551617, 'hi');
|
|||
|
|
insert('hello', 1, -18446744073709551617, 'hi')
|
|||
|
|
hi
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 1, 18446744073709551617, 'hi');
|
|||
|
|
insert('hello', 1, 18446744073709551617, 'hi')
|
|||
|
|
hi
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', -1, -1, 'hi');
|
|||
|
|
insert('hello', -1, -1, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -4294967295, -4294967295, 'hi');
|
|||
|
|
insert('hello', -4294967295, -4294967295, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', 4294967295, 4294967295, 'hi');
|
|||
|
|
insert('hello', 4294967295, 4294967295, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -4294967296, -4294967296, 'hi');
|
|||
|
|
insert('hello', -4294967296, -4294967296, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', 4294967296, 4294967296, 'hi');
|
|||
|
|
insert('hello', 4294967296, 4294967296, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -4294967297, -4294967297, 'hi');
|
|||
|
|
insert('hello', -4294967297, -4294967297, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', 4294967297, 4294967297, 'hi');
|
|||
|
|
insert('hello', 4294967297, 4294967297, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -18446744073709551615, -18446744073709551615, 'hi');
|
|||
|
|
insert('hello', -18446744073709551615, -18446744073709551615, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 18446744073709551615, 18446744073709551615, 'hi');
|
|||
|
|
insert('hello', 18446744073709551615, 18446744073709551615, 'hi')
|
|||
|
|
hello
|
|||
|
|
select insert('hello', -18446744073709551616, -18446744073709551616, 'hi');
|
|||
|
|
insert('hello', -18446744073709551616, -18446744073709551616, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 18446744073709551616, 18446744073709551616, 'hi');
|
|||
|
|
insert('hello', 18446744073709551616, 18446744073709551616, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', -18446744073709551617, -18446744073709551617, 'hi');
|
|||
|
|
insert('hello', -18446744073709551617, -18446744073709551617, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select insert('hello', 18446744073709551617, 18446744073709551617, 'hi');
|
|||
|
|
insert('hello', 18446744073709551617, 18446744073709551617, 'hi')
|
|||
|
|
hello
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select repeat('hello', -1);
|
|||
|
|
repeat('hello', -1)
|
|||
|
|
|
|||
|
|
select repeat('hello', -4294967295);
|
|||
|
|
repeat('hello', -4294967295)
|
|||
|
|
|
|||
|
|
select repeat('hello', 4294967295);
|
|||
|
|
repeat('hello', 4294967295)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select repeat('hello', -4294967296);
|
|||
|
|
repeat('hello', -4294967296)
|
|||
|
|
|
|||
|
|
select repeat('hello', 4294967296);
|
|||
|
|
repeat('hello', 4294967296)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select repeat('hello', -4294967297);
|
|||
|
|
repeat('hello', -4294967297)
|
|||
|
|
|
|||
|
|
select repeat('hello', 4294967297);
|
|||
|
|
repeat('hello', 4294967297)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select repeat('hello', -18446744073709551615);
|
|||
|
|
repeat('hello', -18446744073709551615)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select repeat('hello', 18446744073709551615);
|
|||
|
|
repeat('hello', 18446744073709551615)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select repeat('hello', -18446744073709551616);
|
|||
|
|
repeat('hello', -18446744073709551616)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select repeat('hello', 18446744073709551616);
|
|||
|
|
repeat('hello', 18446744073709551616)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select repeat('hello', -18446744073709551617);
|
|||
|
|
repeat('hello', -18446744073709551617)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select repeat('hello', 18446744073709551617);
|
|||
|
|
repeat('hello', 18446744073709551617)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select space(-1);
|
|||
|
|
space(-1)
|
|||
|
|
|
|||
|
|
select space(-4294967295);
|
|||
|
|
space(-4294967295)
|
|||
|
|
|
|||
|
|
select space(4294967295);
|
|||
|
|
space(4294967295)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select space(-4294967296);
|
|||
|
|
space(-4294967296)
|
|||
|
|
|
|||
|
|
select space(4294967296);
|
|||
|
|
space(4294967296)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select space(-4294967297);
|
|||
|
|
space(-4294967297)
|
|||
|
|
|
|||
|
|
select space(4294967297);
|
|||
|
|
space(4294967297)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select space(-18446744073709551615);
|
|||
|
|
space(-18446744073709551615)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select space(18446744073709551615);
|
|||
|
|
space(18446744073709551615)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select space(-18446744073709551616);
|
|||
|
|
space(-18446744073709551616)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select space(18446744073709551616);
|
|||
|
|
space(18446744073709551616)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select space(-18446744073709551617);
|
|||
|
|
space(-18446744073709551617)
|
|||
|
|
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select space(18446744073709551617);
|
|||
|
|
space(18446744073709551617)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of repeat() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select rpad('hello', -1, '1');
|
|||
|
|
rpad('hello', -1, '1')
|
|||
|
|
NULL
|
|||
|
|
select rpad('hello', -4294967295, '1');
|
|||
|
|
rpad('hello', -4294967295, '1')
|
|||
|
|
NULL
|
|||
|
|
select rpad('hello', 4294967295, '1');
|
|||
|
|
rpad('hello', 4294967295, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of rpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select rpad('hello', -4294967296, '1');
|
|||
|
|
rpad('hello', -4294967296, '1')
|
|||
|
|
NULL
|
|||
|
|
select rpad('hello', 4294967296, '1');
|
|||
|
|
rpad('hello', 4294967296, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of rpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select rpad('hello', -4294967297, '1');
|
|||
|
|
rpad('hello', -4294967297, '1')
|
|||
|
|
NULL
|
|||
|
|
select rpad('hello', 4294967297, '1');
|
|||
|
|
rpad('hello', 4294967297, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of rpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select rpad('hello', -18446744073709551615, '1');
|
|||
|
|
rpad('hello', -18446744073709551615, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select rpad('hello', 18446744073709551615, '1');
|
|||
|
|
rpad('hello', 18446744073709551615, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of rpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select rpad('hello', -18446744073709551616, '1');
|
|||
|
|
rpad('hello', -18446744073709551616, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select rpad('hello', 18446744073709551616, '1');
|
|||
|
|
rpad('hello', 18446744073709551616, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of rpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select rpad('hello', -18446744073709551617, '1');
|
|||
|
|
rpad('hello', -18446744073709551617, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select rpad('hello', 18446744073709551617, '1');
|
|||
|
|
rpad('hello', 18446744073709551617, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of rpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select lpad('hello', -1, '1');
|
|||
|
|
lpad('hello', -1, '1')
|
|||
|
|
NULL
|
|||
|
|
select lpad('hello', -4294967295, '1');
|
|||
|
|
lpad('hello', -4294967295, '1')
|
|||
|
|
NULL
|
|||
|
|
select lpad('hello', 4294967295, '1');
|
|||
|
|
lpad('hello', 4294967295, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of lpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select lpad('hello', -4294967296, '1');
|
|||
|
|
lpad('hello', -4294967296, '1')
|
|||
|
|
NULL
|
|||
|
|
select lpad('hello', 4294967296, '1');
|
|||
|
|
lpad('hello', 4294967296, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of lpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select lpad('hello', -4294967297, '1');
|
|||
|
|
lpad('hello', -4294967297, '1')
|
|||
|
|
NULL
|
|||
|
|
select lpad('hello', 4294967297, '1');
|
|||
|
|
lpad('hello', 4294967297, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of lpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select lpad('hello', -18446744073709551615, '1');
|
|||
|
|
lpad('hello', -18446744073709551615, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select lpad('hello', 18446744073709551615, '1');
|
|||
|
|
lpad('hello', 18446744073709551615, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1301 Result of lpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select lpad('hello', -18446744073709551616, '1');
|
|||
|
|
lpad('hello', -18446744073709551616, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select lpad('hello', 18446744073709551616, '1');
|
|||
|
|
lpad('hello', 18446744073709551616, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of lpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
select lpad('hello', -18446744073709551617, '1');
|
|||
|
|
lpad('hello', -18446744073709551617, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
select lpad('hello', 18446744073709551617, '1');
|
|||
|
|
lpad('hello', 18446744073709551617, '1')
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Error 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
Warning 1301 Result of lpad() was larger than max_allowed_packet (1048576) - truncated
|
|||
|
|
SET @orig_sql_mode = @@SQL_MODE;
|
|||
|
|
SET SQL_MODE=traditional;
|
|||
|
|
SELECT CHAR(0xff,0x8f USING utf8);
|
|||
|
|
CHAR(0xff,0x8f USING utf8)
|
|||
|
|
NULL
|
|||
|
|
Warnings:
|
|||
|
|
Error 1300 Invalid utf8 character string: 'FF8F'
|
|||
|
|
SELECT CHAR(0xff,0x8f USING utf8) IS NULL;
|
|||
|
|
CHAR(0xff,0x8f USING utf8) IS NULL
|
|||
|
|
1
|
|||
|
|
Warnings:
|
|||
|
|
Error 1300 Invalid utf8 character string: 'FF8F'
|
|||
|
|
SET SQL_MODE=@orig_sql_mode;
|
|||
|
|
select substring('abc', cast(2 as unsigned int));
|
|||
|
|
substring('abc', cast(2 as unsigned int))
|
|||
|
|
bc
|
|||
|
|
select repeat('a', cast(2 as unsigned int));
|
|||
|
|
repeat('a', cast(2 as unsigned int))
|
|||
|
|
aa
|
|||
|
|
select rpad('abc', cast(5 as unsigned integer), 'x');
|
|||
|
|
rpad('abc', cast(5 as unsigned integer), 'x')
|
|||
|
|
abcxx
|
|||
|
|
select lpad('abc', cast(5 as unsigned integer), 'x');
|
|||
|
|
lpad('abc', cast(5 as unsigned integer), 'x')
|
|||
|
|
xxabc
|
|||
|
|
create table t1(f1 longtext);
|
|||
|
|
insert into t1 values ("123"),("456");
|
|||
|
|
select substring(f1,1,1) from t1 group by 1;
|
|||
|
|
substring(f1,1,1)
|
|||
|
|
1
|
|||
|
|
4
|
|||
|
|
create table t2(f1 varchar(3));
|
|||
|
|
insert into t1 values ("123"),("456");
|
|||
|
|
select substring(f1,4,1), substring(f1,-4,1) from t2;
|
|||
|
|
substring(f1,4,1) substring(f1,-4,1)
|
|||
|
|
drop table t1,t2;
|
|||
|
|
DROP TABLE IF EXISTS t1;
|
|||
|
|
CREATE TABLE `t1` (
|
|||
|
|
`id` varchar(20) NOT NULL,
|
|||
|
|
`tire` tinyint(3) unsigned NOT NULL,
|
|||
|
|
PRIMARY KEY (`id`)
|
|||
|
|
);
|
|||
|
|
INSERT INTO `t1` (`id`, `tire`) VALUES ('A', 0), ('B', 1),('C', 2);
|
|||
|
|
SELECT REPEAT( '#', tire ) AS A,
|
|||
|
|
REPEAT( '#', tire % 999 ) AS B, tire FROM `t1`;
|
|||
|
|
A B tire
|
|||
|
|
0
|
|||
|
|
# # 1
|
|||
|
|
## ## 2
|
|||
|
|
SELECT REPEAT('0', CAST(0 AS UNSIGNED));
|
|||
|
|
REPEAT('0', CAST(0 AS UNSIGNED))
|
|||
|
|
|
|||
|
|
SELECT REPEAT('0', -2);
|
|||
|
|
REPEAT('0', -2)
|
|||
|
|
|
|||
|
|
SELECT REPEAT('0', 2);
|
|||
|
|
REPEAT('0', 2)
|
|||
|
|
00
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
SELECT UNHEX('G');
|
|||
|
|
UNHEX('G')
|
|||
|
|
NULL
|
|||
|
|
SELECT UNHEX('G') IS NULL;
|
|||
|
|
UNHEX('G') IS NULL
|
|||
|
|
1
|
|||
|
|
SELECT INSERT('abc', 3, 3, '1234');
|
|||
|
|
INSERT('abc', 3, 3, '1234')
|
|||
|
|
ab1234
|
|||
|
|
SELECT INSERT('abc', 4, 3, '1234');
|
|||
|
|
INSERT('abc', 4, 3, '1234')
|
|||
|
|
abc1234
|
|||
|
|
SELECT INSERT('abc', 5, 3, '1234');
|
|||
|
|
INSERT('abc', 5, 3, '1234')
|
|||
|
|
abc
|
|||
|
|
SELECT INSERT('abc', 6, 3, '1234');
|
|||
|
|
INSERT('abc', 6, 3, '1234')
|
|||
|
|
abc
|
|||
|
|
CREATE TABLE t1 (a INT);
|
|||
|
|
CREATE VIEW v1 AS SELECT CRC32(a) AS C FROM t1;
|
|||
|
|
INSERT INTO t1 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
|
|||
|
|
SELECT CRC32(a), COUNT(*) FROM t1 GROUP BY 1;
|
|||
|
|
CRC32(a) COUNT(*)
|
|||
|
|
450215437 1
|
|||
|
|
498629140 1
|
|||
|
|
1790921346 1
|
|||
|
|
1842515611 1
|
|||
|
|
2212294583 1
|
|||
|
|
2226203566 1
|
|||
|
|
2366072709 1
|
|||
|
|
2707236321 1
|
|||
|
|
4088798008 1
|
|||
|
|
4194326291 1
|
|||
|
|
SELECT CRC32(a), COUNT(*) FROM t1 GROUP BY 1 ORDER BY 1;
|
|||
|
|
CRC32(a) COUNT(*)
|
|||
|
|
450215437 1
|
|||
|
|
498629140 1
|
|||
|
|
1790921346 1
|
|||
|
|
1842515611 1
|
|||
|
|
2212294583 1
|
|||
|
|
2226203566 1
|
|||
|
|
2366072709 1
|
|||
|
|
2707236321 1
|
|||
|
|
4088798008 1
|
|||
|
|
4194326291 1
|
|||
|
|
SELECT * FROM (SELECT CRC32(a) FROM t1) t2;
|
|||
|
|
CRC32(a)
|
|||
|
|
2212294583
|
|||
|
|
450215437
|
|||
|
|
1842515611
|
|||
|
|
4088798008
|
|||
|
|
2226203566
|
|||
|
|
498629140
|
|||
|
|
1790921346
|
|||
|
|
4194326291
|
|||
|
|
2366072709
|
|||
|
|
2707236321
|
|||
|
|
CREATE TABLE t2 SELECT CRC32(a) FROM t1;
|
|||
|
|
desc t2;
|
|||
|
|
Field Type Null Key Default Extra
|
|||
|
|
CRC32(a) int(10) unsigned YES NULL
|
|||
|
|
SELECT * FROM v1;
|
|||
|
|
C
|
|||
|
|
2212294583
|
|||
|
|
450215437
|
|||
|
|
1842515611
|
|||
|
|
4088798008
|
|||
|
|
2226203566
|
|||
|
|
498629140
|
|||
|
|
1790921346
|
|||
|
|
4194326291
|
|||
|
|
2366072709
|
|||
|
|
2707236321
|
|||
|
|
SELECT * FROM (SELECT * FROM v1) x;
|
|||
|
|
C
|
|||
|
|
2212294583
|
|||
|
|
450215437
|
|||
|
|
1842515611
|
|||
|
|
4088798008
|
|||
|
|
2226203566
|
|||
|
|
498629140
|
|||
|
|
1790921346
|
|||
|
|
4194326291
|
|||
|
|
2366072709
|
|||
|
|
2707236321
|
|||
|
|
DROP TABLE t1, t2;
|
|||
|
|
DROP VIEW v1;
|
|||
|
|
SELECT LOCATE('foo', NULL) FROM DUAL;
|
|||
|
|
LOCATE('foo', NULL)
|
|||
|
|
NULL
|
|||
|
|
SELECT LOCATE(NULL, 'o') FROM DUAL;
|
|||
|
|
LOCATE(NULL, 'o')
|
|||
|
|
NULL
|
|||
|
|
SELECT LOCATE(NULL, NULL) FROM DUAL;
|
|||
|
|
LOCATE(NULL, NULL)
|
|||
|
|
NULL
|
|||
|
|
SELECT LOCATE('foo', NULL) IS NULL FROM DUAL;
|
|||
|
|
LOCATE('foo', NULL) IS NULL
|
|||
|
|
1
|
|||
|
|
SELECT LOCATE(NULL, 'o') IS NULL FROM DUAL;
|
|||
|
|
LOCATE(NULL, 'o') IS NULL
|
|||
|
|
1
|
|||
|
|
SELECT LOCATE(NULL, NULL) IS NULL FROM DUAL;
|
|||
|
|
LOCATE(NULL, NULL) IS NULL
|
|||
|
|
1
|
|||
|
|
SELECT ISNULL(LOCATE('foo', NULL)) FROM DUAL;
|
|||
|
|
ISNULL(LOCATE('foo', NULL))
|
|||
|
|
1
|
|||
|
|
SELECT ISNULL(LOCATE(NULL, 'o')) FROM DUAL;
|
|||
|
|
ISNULL(LOCATE(NULL, 'o'))
|
|||
|
|
1
|
|||
|
|
SELECT ISNULL(LOCATE(NULL, NULL)) FROM DUAL;
|
|||
|
|
ISNULL(LOCATE(NULL, NULL))
|
|||
|
|
1
|
|||
|
|
SELECT LOCATE('foo', NULL) <=> NULL FROM DUAL;
|
|||
|
|
LOCATE('foo', NULL) <=> NULL
|
|||
|
|
1
|
|||
|
|
SELECT LOCATE(NULL, 'o') <=> NULL FROM DUAL;
|
|||
|
|
LOCATE(NULL, 'o') <=> NULL
|
|||
|
|
1
|
|||
|
|
SELECT LOCATE(NULL, NULL) <=> NULL FROM DUAL;
|
|||
|
|
LOCATE(NULL, NULL) <=> NULL
|
|||
|
|
1
|
|||
|
|
CREATE TABLE t1 (id int NOT NULL PRIMARY KEY, a varchar(10), p varchar(10));
|
|||
|
|
INSERT INTO t1 VALUES (1, 'foo', 'o');
|
|||
|
|
INSERT INTO t1 VALUES (2, 'foo', NULL);
|
|||
|
|
INSERT INTO t1 VALUES (3, NULL, 'o');
|
|||
|
|
INSERT INTO t1 VALUES (4, NULL, NULL);
|
|||
|
|
SELECT id, LOCATE(a,p) FROM t1;
|
|||
|
|
id LOCATE(a,p)
|
|||
|
|
1 0
|
|||
|
|
2 NULL
|
|||
|
|
3 NULL
|
|||
|
|
4 NULL
|
|||
|
|
SELECT id, LOCATE(a,p) IS NULL FROM t1;
|
|||
|
|
id LOCATE(a,p) IS NULL
|
|||
|
|
1 0
|
|||
|
|
2 1
|
|||
|
|
3 1
|
|||
|
|
4 1
|
|||
|
|
SELECT id, ISNULL(LOCATE(a,p)) FROM t1;
|
|||
|
|
id ISNULL(LOCATE(a,p))
|
|||
|
|
1 0
|
|||
|
|
2 1
|
|||
|
|
3 1
|
|||
|
|
4 1
|
|||
|
|
SELECT id, LOCATE(a,p) <=> NULL FROM t1;
|
|||
|
|
id LOCATE(a,p) <=> NULL
|
|||
|
|
1 0
|
|||
|
|
2 1
|
|||
|
|
3 1
|
|||
|
|
4 1
|
|||
|
|
SELECT id FROM t1 WHERE LOCATE(a,p) IS NULL;
|
|||
|
|
id
|
|||
|
|
2
|
|||
|
|
3
|
|||
|
|
4
|
|||
|
|
SELECT id FROM t1 WHERE LOCATE(a,p) <=> NULL;
|
|||
|
|
id
|
|||
|
|
2
|
|||
|
|
3
|
|||
|
|
4
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
SELECT SUBSTR('foo',1,0) FROM DUAL;
|
|||
|
|
SUBSTR('foo',1,0)
|
|||
|
|
|
|||
|
|
SELECT SUBSTR('foo',1,CAST(0 AS SIGNED)) FROM DUAL;
|
|||
|
|
SUBSTR('foo',1,CAST(0 AS SIGNED))
|
|||
|
|
|
|||
|
|
SELECT SUBSTR('foo',1,CAST(0 AS UNSIGNED)) FROM DUAL;
|
|||
|
|
SUBSTR('foo',1,CAST(0 AS UNSIGNED))
|
|||
|
|
|
|||
|
|
CREATE TABLE t1 (a varchar(10), len int unsigned);
|
|||
|
|
INSERT INTO t1 VALUES ('bar', 2), ('foo', 0);
|
|||
|
|
SELECT SUBSTR(a,1,len) FROM t1;
|
|||
|
|
SUBSTR(a,1,len)
|
|||
|
|
ba
|
|||
|
|
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE TABLE t1 AS SELECT CHAR(0x414243) as c1;
|
|||
|
|
SELECT HEX(c1) from t1;
|
|||
|
|
HEX(c1)
|
|||
|
|
414243
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE VIEW v1 AS SELECT CHAR(0x414243) as c1;
|
|||
|
|
SELECT HEX(c1) from v1;
|
|||
|
|
HEX(c1)
|
|||
|
|
414243
|
|||
|
|
DROP VIEW v1;
|
|||
|
|
create table t1(a float);
|
|||
|
|
insert into t1 values (1.33);
|
|||
|
|
select format(a, 2) from t1;
|
|||
|
|
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
|
|||
|
|
def format(a, 2) 253 49 4 Y 0 31 8
|
|||
|
|
format(a, 2)
|
|||
|
|
1.33
|
|||
|
|
drop table t1;
|
|||
|
|
CREATE TABLE t1 (c DATE, aa VARCHAR(30));
|
|||
|
|
INSERT INTO t1 VALUES ('2008-12-31','aaaaaa');
|
|||
|
|
SELECT DATE_FORMAT(c, GET_FORMAT(DATE, 'eur')) h, CONCAT(UPPER(aa),', ', aa) i FROM t1;
|
|||
|
|
h i
|
|||
|
|
31.12.2008 AAAAAA, aaaaaa
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
#
|
|||
|
|
# BUG#44774: load_file function produces valgrind warnings
|
|||
|
|
#
|
|||
|
|
CREATE TABLE t1 (a TINYBLOB);
|
|||
|
|
INSERT INTO t1 VALUES ('aaaaaaaa');
|
|||
|
|
SELECT LOAD_FILE(a) FROM t1;
|
|||
|
|
LOAD_FILE(a)
|
|||
|
|
NULL
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
CREATE TABLE t1 (f2 VARCHAR(20));
|
|||
|
|
CREATE TABLE t2 (f2 VARCHAR(20));
|
|||
|
|
INSERT INTO t1 VALUES ('MIN'),('MAX');
|
|||
|
|
INSERT INTO t2 VALUES ('LOAD');
|
|||
|
|
SELECT CONCAT_WS('_', (SELECT t2.f2 FROM t2), t1.f2) AS concat_name FROM t1;
|
|||
|
|
concat_name
|
|||
|
|
LOAD_MIN
|
|||
|
|
LOAD_MAX
|
|||
|
|
DROP TABLE t1, t2;
|
|||
|
|
End of 5.0 tests
|
|||
|
|
drop table if exists t1;
|
|||
|
|
create table t1(f1 tinyint default null)engine=myisam;
|
|||
|
|
insert into t1 values (-1),(null);
|
|||
|
|
explain select 1 as a from t1,(select decode(f1,f1) as b from t1) a;
|
|||
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|||
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
|
|||
|
|
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using join buffer
|
|||
|
|
2 DERIVED t1 ALL NULL NULL NULL NULL 2
|
|||
|
|
explain select 1 as a from t1,(select encode(f1,f1) as b from t1) a;
|
|||
|
|
id select_type table type possible_keys key key_len ref rows Extra
|
|||
|
|
1 PRIMARY t1 ALL NULL NULL NULL NULL 2
|
|||
|
|
1 PRIMARY <derived2> ALL NULL NULL NULL NULL 2 Using join buffer
|
|||
|
|
2 DERIVED t1 ALL NULL NULL NULL NULL 2
|
|||
|
|
drop table t1;
|
|||
|
|
#
|
|||
|
|
# Bug#49141: Encode function is significantly slower in 5.1 compared to 5.0
|
|||
|
|
#
|
|||
|
|
DROP TABLE IF EXISTS t1, t2;
|
|||
|
|
CREATE TABLE t1 (a VARCHAR(20), b INT);
|
|||
|
|
CREATE TABLE t2 (a VARCHAR(20), b INT);
|
|||
|
|
INSERT INTO t1 VALUES ('ABC', 1);
|
|||
|
|
INSERT INTO t2 VALUES ('ABC', 1);
|
|||
|
|
SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
|
|||
|
|
FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
|
|||
|
|
DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
|
|||
|
|
secret
|
|||
|
|
SELECT DECODE((SELECT ENCODE('secret', 'ABC') FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
|
|||
|
|
FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
|
|||
|
|
DECODE((SELECT ENCODE('secret', 'ABC') FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), t2.a)
|
|||
|
|
secret
|
|||
|
|
SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), 'ABC')
|
|||
|
|
FROM t1,t2 WHERE t1.b = t1.b > 0 GROUP BY t2.b;
|
|||
|
|
DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b), 'ABC')
|
|||
|
|
secret
|
|||
|
|
TRUNCATE TABLE t1;
|
|||
|
|
TRUNCATE TABLE t2;
|
|||
|
|
INSERT INTO t1 VALUES ('EDF', 3), ('BCD', 2), ('ABC', 1);
|
|||
|
|
INSERT INTO t2 VALUES ('EDF', 3), ('BCD', 2), ('ABC', 1);
|
|||
|
|
SELECT DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b LIMIT 1), t2.a)
|
|||
|
|
FROM t2 WHERE t2.b = 1 GROUP BY t2.b;
|
|||
|
|
DECODE((SELECT ENCODE('secret', t1.a) FROM t1,t2 WHERE t1.a = t2.a GROUP BY t1.b LIMIT 1), t2.a)
|
|||
|
|
secret
|
|||
|
|
DROP TABLE t1, t2;
|
|||
|
|
#
|
|||
|
|
# Bug#52164 Assertion failed: param.sort_length, file .\filesort.cc, line 149
|
|||
|
|
#
|
|||
|
|
CREATE TABLE t1 (a LONGBLOB NOT NULL);
|
|||
|
|
INSERT INTO t1 VALUES (''),('');
|
|||
|
|
SELECT 1 FROM t1, t1 t2
|
|||
|
|
ORDER BY QUOTE(t1.a);
|
|||
|
|
1
|
|||
|
|
1
|
|||
|
|
1
|
|||
|
|
1
|
|||
|
|
1
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
#
|
|||
|
|
# Bug#57913 large negative number to string conversion functions crash
|
|||
|
|
# Bug#57810 case/when/then : Assertion failed: length || !scale
|
|||
|
|
#
|
|||
|
|
SELECT '1' IN ('1', SUBSTRING(-9223372036854775809, 1));
|
|||
|
|
'1' IN ('1', SUBSTRING(-9223372036854775809, 1))
|
|||
|
|
1
|
|||
|
|
SELECT CONVERT(('' IN (REVERSE(CAST(('') AS DECIMAL)), '')), CHAR(3));
|
|||
|
|
CONVERT(('' IN (REVERSE(CAST(('') AS DECIMAL)), '')), CHAR(3))
|
|||
|
|
1
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1292 Truncated incorrect DECIMAL value: ''
|
|||
|
|
#
|
|||
|
|
# Bug#58165: "my_empty_string" gets modified and causes LOAD DATA to fail
|
|||
|
|
# and other crashes
|
|||
|
|
#
|
|||
|
|
CREATE TABLE t1 ( a TEXT );
|
|||
|
|
SELECT 'aaaaaaaaaaaaaa' INTO OUTFILE 'MYSQLTEST_VARDIR/tmp/bug58165.txt';;
|
|||
|
|
SELECT insert( substring_index( 'a', 'a', 'b' ), 1, 0, 'x' );
|
|||
|
|
insert( substring_index( 'a', 'a', 'b' ), 1, 0, 'x' )
|
|||
|
|
x
|
|||
|
|
Warnings:
|
|||
|
|
Warning 1292 Truncated incorrect INTEGER value: 'b'
|
|||
|
|
LOAD DATA INFILE 'MYSQLTEST_VARDIR/tmp/bug58165.txt' INTO TABLE t1;;
|
|||
|
|
SELECT * FROM t1;
|
|||
|
|
a
|
|||
|
|
aaaaaaaaaaaaaa
|
|||
|
|
DROP TABLE t1;
|
|||
|
|
End of 5.1 tests
|