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updating a primary key column

 
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rashmi.ranjan75

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Joined: 20 Feb 2006
Posts: 34

PostPosted: Mon Apr 24, 2006 1:08 pm    Post subject: updating a primary key column
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Hi,

If i update a primary key column does it impact the performance of the sql. Any other constraint in updating primary key coulmn.

Please suggest.

Regards
rashmi
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DavidatK

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Joined: 22 Nov 2005
Posts: 700
Location: Troy, Michigan USA

PostPosted: Tue Apr 25, 2006 5:39 am    Post subject: Re: updating a primary key column
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rashmi,

Certainly updating the primary key, or any of the secondary keys is going to impact the performance of the SQL greater than updating non key columns. DB2 must also update the indexes for the keys you change.

Dave
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