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Default constraints

Author

Topic

honeytjames
Starting Member

3 Posts

Posted - 2008-10-07 : 23:32:03

Hi,

I know we can use the following code to specify default constraints for a new column but can someone tell me how to specify a default constraint for an already existing column?

ALTER TABLE TestTable
ADD NewCol VARCHAR(50)
CONSTRAINT DF_TestTable_NewCol DEFAULT '' NOT NULL
GO

Any help would be greatly appreciated!!!Thanx in advance..

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2008-10-07 : 23:33:00

use alter table alter column
ALTER TABLE TestTable
ALTER COLUMN NewCol VARCHAR(50)
CONSTRAINT DF_TestTable_NewCol DEFAULT '' NOT NULL
GO

Lamprey
Master Smack Fu Yak Hacker

4614 Posts

Posted - 2008-10-08 : 11:55:18

ALTER TABLE TestTable
ADD CONSTRAINT DF_TestTable_NewCol DEFAULT '' FOR NewCol

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