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Old February 16th, 2006, 01:29 PM
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Default How to test if a column exists in a table

I need to some how check to see if a specific column exists in a table. If it doesn't then I would add the new column.

Here is what I have so far but sysobjects doesn't seem to support at the column level.

if not exists (select * from sysobjects where id = object_id('[dbo].[Timesheet].[Approve]') and OBJECTPROPERTY(id, 'IsUserTable') = 1)
ALTER TABLE [dbo].[Timesheet] ADD Approve VARCHAR(15) NULL

Any Ideas ?

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Old February 16th, 2006, 01:55 PM
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You need to query syscolumns. First, get the object id from sysobjects for your table name, then with that object id, query the syscolumns table, looking for that colummn name.

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Old February 16th, 2006, 02:25 PM
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very easy, use the ANSI system views

“I sense many useless updates in you... Useless updates lead to fragmentation... Fragmentation leads to downtime...Downtime leads to suffering..Fragmentation is the path to the darkside.. DBCC INDEXDEFRAG and DBCC DBREINDEX are the force...May the force be with you" -- http://sqlservercode.blogspot.com/
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