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Programatically set default to an existing db column

  • April 30, 2010 at 7:30 am

    #220947

    Thanks for your help. (mssqlserver 2005) I have a table called tier1 and a column named class nvarchar(150) it needs to have a default value set on that column. I know how to do it using managment studio, but I need to do it using code. How would I do this? Thanks!

  • April 30, 2010 at 7:36 am

    #1160408

    Something like this.

    ALTER TABLE tblA

    ADD Class NVARCHAR(150) DEFAULT 'Some value'

  • April 30, 2010 at 7:38 am

    #1160412

    George Murphy (4/30/2010)

    Thanks for your help. (mssqlserver 2005) I have a table called tier1 and a column named class nvarchar(150) it needs to have a default value set on that column. I know how to do it using managment studio, but I need to do it using code. How would I do this? Thanks!

    George just before saving a change like adding this default in the Design GUI, you could click the "Generate Change Script " button(the first button...scroll bar and save kind of icon) and see the code that the system would use;

    it's just adding a default constraint, which would be like this:

    ALTER TABLE tier1 ADD CONSTRAINT [DF_MyDefaultForClass] DEFAULT 'TheDefaultClass' FOR class

    Lowell

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