mirror of
https://github.com/MariaDB/server.git
synced 2025-01-18 13:02:28 +01:00
29 lines
887 B
Text
29 lines
887 B
Text
drop table if exists t1;
|
|
create table t1 (a int check (a>0));
|
|
insert into t1 values (1);
|
|
insert into t1 values (0);
|
|
drop table t1;
|
|
create table t1 (a int ,b int, check a>b);
|
|
insert into t1 values (1,0);
|
|
insert into t1 values (0,1);
|
|
drop table t1;
|
|
create table t1 (a int ,b int, constraint abc check (a>b));
|
|
insert into t1 values (1,0);
|
|
insert into t1 values (0,1);
|
|
drop table t1;
|
|
create table t1 (a int null);
|
|
insert into t1 values (1),(NULL);
|
|
drop table t1;
|
|
create table t1 (a int null);
|
|
alter table t1 add constraint constraint_1 unique (a);
|
|
alter table t1 add constraint unique key_1(a);
|
|
alter table t1 add constraint constraint_2 unique key_2(a);
|
|
show create table t1;
|
|
Table Create Table
|
|
t1 CREATE TABLE `t1` (
|
|
`a` int(11) default NULL,
|
|
UNIQUE KEY `constraint_1` (`a`),
|
|
UNIQUE KEY `key_1` (`a`),
|
|
UNIQUE KEY `key_2` (`a`)
|
|
) ENGINE=MyISAM DEFAULT CHARSET=latin1
|
|
drop table t1;
|