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SQL Server 2008 timeout when adding new column

Posted on 2012-08-31
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Last Modified: 2012-08-31
I am trying to add a column to any table in my DB but it is takes longer than expected. The total DB size is 16mb. I have tried through Management Studio and it times-out with error below. I know you can increase the timeout threshold within Management Studio but have not done so yet because I tried the route of TSQL "Alter Table tablename ADD columnname int". This takes beyond 10 minutes which does not seem right to me. I understand the general process of adding a new column behind the scenes and the small size of my tables which leads me to think there is a larger problem and this is a symptom.

The error I receive from MSSMS is:

'Prod' table
- Unable to modify table.  
Timeout expired.  The timeout period elapsed prior to completion of the operation or the server is not responding.


Any suggestions?
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Question by:jrobinsontx
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Aneesh Retnakaran earned 1600 total points
ID: 38354832
seems like some other process is locked your table. Run  'sp_Who2' and check who is accessing your database,  if it is not a production database, you can kill the process using the Kill statement

KILL <process id > 

an alternative option, in case it is not a production db is to restart your sql server service and run the ALTER TABLE Statement
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Author Closing Comment

by:jrobinsontx
ID: 38354904
I killed two processes and that helped my problem.
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