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Sql Server Snaphot Performance.


Sql Server Snaphot Performance.

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brk5tr
brk5tr
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Hi,

I am running an update to a large number of rows on a table in a database which has a snapshot.

The update is quite slow, so I was just wondering if having a snaphot in place will slow down updates at all, as the original pages will need to be copied to the snapshot for each modification?

It may just be due to the large amount of data; however I'd like to rule out the possibiltiy that the update is not being slowed down by the snaphot being in place.

Thanks.
GilaMonster
GilaMonster
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Yup, it can be due to the snapshot.
http://www.sqlservercentral.com/articles/Performance+Tuning/64080/

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
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brk5tr
brk5tr
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Thanks very much for your help. Thats exactly what I needed.
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