31 lines
		
	
	
		
			654 B
		
	
	
	
		
			Plaintext
		
	
	
	
			
		
		
	
	
			31 lines
		
	
	
		
			654 B
		
	
	
	
		
			Plaintext
		
	
	
	
| drop table if exists t1;
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| SET @@SESSION.AUTO_INCREMENT_INCREMENT=1, @@SESSION.AUTO_INCREMENT_OFFSET=1;
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| CREATE TABLE t1 (c1 INT PRIMARY KEY AUTO_INCREMENT) ENGINE=InnoDB;
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| INSERT INTO t1 VALUES (null);
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| INSERT INTO t1 VALUES (null);
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| ALTER TABLE t1 CHANGE c1 d1 INT NOT NULL AUTO_INCREMENT;
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| SELECT * FROM t1;
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| d1
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| 1
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| 2
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| SELECT * FROM t1;
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| d1
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| 1
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| 2
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| INSERT INTO t1 VALUES(null);
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| ALTER TABLE t1 AUTO_INCREMENT = 3;
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| SHOW CREATE TABLE t1;
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| Table	Create Table
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| t1	CREATE TABLE `t1` (
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|   `d1` int(11) NOT NULL AUTO_INCREMENT,
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|   PRIMARY KEY (`d1`)
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| ) ENGINE=InnoDB AUTO_INCREMENT=4 DEFAULT CHARSET=latin1
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| INSERT INTO t1 VALUES(null);
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| SELECT * FROM t1;
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| d1
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| 1
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| 2
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| 3
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| 4
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| DROP TABLE t1;
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