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			66 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			66 lines
		
	
	
		
			1.2 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| DROP TABLE IF EXISTS t1,t2,t3,t4,t5,t6,t7;
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| create table t1 (x integer not null primary key, y varchar(32)) engine = ndb;
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| insert into t1 values (1,'one'), (2,'two');
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| select * from t1 order by x;
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| x	y
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| 1	one
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| 2	two
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| select * from t1 order by x;
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| x	y
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| 1	one
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| 2	two
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| start transaction;
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| insert into t1 values (3,'three');
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| select * from t1 order by x;
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| x	y
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| 1	one
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| 2	two
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| 3	three
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| start transaction;
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| select * from t1 order by x;
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| x	y
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| 1	one
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| 2	two
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| commit;
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| select * from t1 order by x;
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| x	y
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| 1	one
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| 2	two
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| 3	three
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| commit;
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| drop table t1;
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| create table t1 (pk integer not null primary key, u int not null, o int not null, 
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| unique(u), key(o)) engine = ndb;
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| insert into t1 values (1,1,1), (2,2,2), (3,3,3), (4,4,4), (5,5,5);
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| lock tables t1 write;
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| delete from t1 where pk = 1;
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| unlock tables;
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| select * from t1 order by pk;
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| pk	u	o
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| 2	2	2
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| 3	3	3
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| 4	4	4
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| 5	5	5
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| insert into t1 values (1,1,1);
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| lock tables t1 write;
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| delete from t1 where u = 1;
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| unlock tables;
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| select * from t1 order by pk;
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| pk	u	o
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| 2	2	2
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| 3	3	3
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| 4	4	4
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| 5	5	5
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| insert into t1 values (1,1,1);
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| lock tables t1 write;
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| delete from t1 where o = 1;
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| unlock tables;
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| select * from t1 order by pk;
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| pk	u	o
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| 2	2	2
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| 3	3	3
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| 4	4	4
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| 5	5	5
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| insert into t1 values (1,1,1);
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| drop table t1;
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