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beliveinmyshelf
Starting Member
15 Posts |
 Posted - 2007-07-04 : 00:42:52
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| hi!i created a table with T-SQL :create table Table_1(Name varchar(20) primary key,Age int)it's okie.but when i edit this table with :"alter table Table_1 alter column Age add constraint PK_Age unique"then it's error.i want to set "Age" column with UNIQUE constraint.please help methank very munch |
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pootle_flump
1064 Posts |
Posted - 2007-07-04 : 03:42:15
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quote:
Originally posted by beliveinmyshelf
hi!i created a table with T-SQL :create table Table_1(Name varchar(20) primary key,Age int)it's okie.but when i edit this table with :"alter table Table_1 alter column Age add constraint PK_Age unique"then it's error.i want to set "Age" column with UNIQUE constraint.please help methank very munch
alter table Table_1 add constraint PK_Age unique nonclustered (Age) You can also include this in your original make table if interested:create table Table_1(Name varchar(20) primary key,Age int, constraint PK_Age unique nonclustered (Age)) |
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beliveinmyshelf
Starting Member
15 Posts |
Posted - 2007-07-04 : 05:19:01
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thank you very munchi was test.and result is : The command(s) completed successfully.thank you. |
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UNIQUE constraint