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02f382ecaa
Second edition: error message was deleted as Segey suggested Now name of the constraint will be used as the name of the key if the last not specified
30 lines
798 B
Plaintext
30 lines
798 B
Plaintext
#
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# Testing of constraints
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# Currently MySQL only ignores the syntax.
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#
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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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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create table t1 (a int null);
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alter table t1 add constraint constraint_1 unique (a);
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alter table t1 add constraint unique key_1(a);
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alter table t1 add constraint constraint_2 unique key_2(a);
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show create table t1;
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drop table t1;
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