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			34 lines
		
	
	
		
			611 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			611 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| DROP TABLE IF EXISTS t1;
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| CREATE TABLE t1 (
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| pk1 INT NOT NULL PRIMARY KEY,
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| b INT NOT NULL,
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| c INT NOT NULL UNIQUE
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| ) ENGINE=ndbcluster;
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| INSERT INTO t1 VALUES (0, 1, 0),(1,2,1),(2,3,2);
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| UPDATE t1 set b = c;
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| select * from t1 order by pk1;
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| pk1	b	c
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| 0	0	0
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| 1	1	1
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| 2	2	2
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| UPDATE t1 set pk1 = 4 where pk1 = 1;
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| select * from t1 order by pk1;
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| pk1	b	c
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| 0	0	0
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| 2	2	2
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| 4	1	1
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| UPDATE t1 set pk1 = 1, c = 2 where pk1 = 4;
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| ERROR 23000: Duplicate entry '' for key 0
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| select * from t1 order by pk1;
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| pk1	b	c
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| 0	0	0
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| 2	2	2
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| 4	1	1
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| UPDATE t1 set pk1 = pk1 + 10;
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| select * from t1 order by pk1;
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| pk1	b	c
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| 10	0	0
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| 12	2	2
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| 14	1	1
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| DROP TABLE IF EXISTS t1;
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