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HowTo: DROP DEFAULT
Message
 
 
À
06/11/2008 10:49:51
Information générale
Forum:
Microsoft SQL Server
Catégorie:
Autre
Versions des environnements
SQL Server:
SQL Server 2000
Divers
Thread ID:
01360190
Message ID:
01360200
Vues:
7
Gary,

Delete column through EM but instead of saving changes generate a script and see what is involved.
>
>Sergey gave me a great tip on how to specify a column default and avoid a null being applied, instead of my default.
>
>As this code develops, I know want to drop the column but the default that was created depends on the column, hence, the DROP COLUMN fails.
>
>In order to know the name of the default, I apply a user-defined DEFAULT name like so:-
>
>
>ALTER TABLE [dbo].[IndividualAttribsMeta] 
>   ADD [PlaysBridge] varchar(250) 
>   NOT NULL CONSTRAINT DF_PlaysBridge DEFAULT 'Plays Bridge' 
>
>
>This seems to work fine. However, when I try the following to delete the DEFAULT, SQL server complains:-
>
>
>ALTER TABLE [dbo].[IndividualAttribsMeta] 
>  DROP DEFAULT [dbo].[DF_PlaysBridge]
>  DROP COLUMN PlaysBridge
>
>Incorrect syntax near the keyword 'DEFAULT'.
>
>
>Can anyone see what is going wrong here?
>
>
>Thanks.
>
>-=Gary
--sb--
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