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Message Posted: Thu, 28 Feb 2008 @ 16:17:24 GMT


     
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Subj:   Impacts of adding column to a large table
 
From:   Longauer Juraj

Hi,

I have a large table (~150 GB) on which I want to add a nullable column using ALTER TABLE command. I am curious how big is the impact on the system performance and availibility of the table duration of the lock, adding NULL to each record etc.


Thanks,

Juraj



     
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