77 lines
2.1 KiB
Plaintext
77 lines
2.1 KiB
Plaintext
drop table if exists t1;
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create table t1 (
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id INTEGER AUTO_INCREMENT PRIMARY KEY,
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emp CHAR(10) NOT NULL,
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salary DECIMAL(6,2) NOT NULL,
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l INTEGER NOT NULL,
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r INTEGER NOT NULL);
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prepare st_ins from 'insert into t1 set emp = ?, salary = ?, l = ?, r = ?';
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set @arg_nam= 'Jerry';
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set @arg_sal= 1000;
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set @arg_l= 1;
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set @arg_r= 12;
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execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ;
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set @arg_nam= 'Bert';
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set @arg_sal= 900;
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set @arg_l= 2;
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set @arg_r= 3;
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execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ;
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set @arg_nam= 'Chuck';
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set @arg_sal= 900;
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set @arg_l= 4;
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set @arg_r= 11;
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execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ;
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set @arg_nam= 'Donna';
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set @arg_sal= 800;
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set @arg_l= 5;
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set @arg_r= 6;
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execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ;
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set @arg_nam= 'Eddie';
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set @arg_sal= 700;
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set @arg_l= 7;
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set @arg_r= 8;
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execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ;
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set @arg_nam= 'Fred';
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set @arg_sal= 600;
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set @arg_l= 9;
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set @arg_r= 10;
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execute st_ins using @arg_nam, @arg_sal, @arg_l, @arg_r ;
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select * from t1;
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id emp salary l r
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1 Jerry 1000.00 1 12
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2 Bert 900.00 2 3
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3 Chuck 900.00 4 11
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4 Donna 800.00 5 6
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5 Eddie 700.00 7 8
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6 Fred 600.00 9 10
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prepare st_raise_base from 'update t1 set salary = salary * ( 1 + ? ) where r - l = 1';
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prepare st_raise_mgr from 'update t1 set salary = salary + ? where r - l > 1';
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set @arg_percent= .10;
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set @arg_amount= 100;
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execute st_raise_base using @arg_percent;
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execute st_raise_mgr using @arg_amount;
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execute st_raise_base using @arg_percent;
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execute st_raise_mgr using @arg_amount;
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execute st_raise_base using @arg_percent;
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execute st_raise_mgr using @arg_amount;
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select * from t1;
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id emp salary l r
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1 Jerry 1300.00 1 12
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2 Bert 1197.90 2 3
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3 Chuck 1200.00 4 11
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4 Donna 1064.80 5 6
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5 Eddie 931.70 7 8
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6 Fred 798.60 9 10
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prepare st_round from 'update t1 set salary = salary + ? - ( salary MOD ? )';
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set @arg_round= 50;
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execute st_round using @arg_round, @arg_round;
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select * from t1;
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id emp salary l r
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1 Jerry 1350.00 1 12
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2 Bert 1200.00 2 3
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3 Chuck 1250.00 4 11
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4 Donna 1100.00 5 6
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5 Eddie 950.00 7 8
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6 Fred 800.00 9 10
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drop table t1;
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