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17 lines
459 B
Text
17 lines
459 B
Text
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drop table if exists t1;
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create table t1 (a int check (a>0));
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insert into t1 values (1);
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insert into t1 values (0);
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drop table t1;
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create table t1 (a int ,b int, check a>b);
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insert into t1 values (1,0);
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insert into t1 values (0,1);
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drop table t1;
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create table t1 (a int ,b int, constraint abc check (a>b));
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insert into t1 values (1,0);
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insert into t1 values (0,1);
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drop table t1;
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create table t1 (a int null);
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insert into t1 values (1),(NULL);
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drop table t1;
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