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upgrading from 2005 to 2008


upgrading from 2005 to 2008

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pmadhavapeddi22
pmadhavapeddi22
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Hi,

Please suggest me what are the measures to be taken on the database or server settings if we are suggesting our client
to upgrade from SQL 2005 version to 2008 version.

One of our client has an issue about performance degrade when they have upgraded their sql version from 2005 to 2008. In this scenario, what all do I need to check at the client side
to improve the performance. They have reporting database on which reports were working fine with sql2005 version and they are running slow on 2008 server.

Note :

No changes in schema
No new queries


Thanks for your suggestions
djj
djj
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Did you rebuild the query statistics when you changed servers?

Note this is a guess on my part as I am not an expert in performance tuning.Ermm
sqlbuddy123
sqlbuddy123
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Compare the server level settings of both 2005 and 2008 servers. Are they same or missed something on the new server.

Also check the DB file layout , tempdb layout etc ..

--
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muthukkumaran Kaliyamoorthy
muthukkumaran Kaliyamoorthy
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pmadhavapeddi22 (2/18/2014)
Hi,

Please suggest me what are the measures to be taken on the database or server settings if we are suggesting our client
to upgrade from SQL 2005 version to 2008 version.

One of our client has an issue about performance degrade when they have upgraded their sql version from 2005 to 2008. In this scenario, what all do I need to check at the client side
to improve the performance. They have reporting database on which reports were working fine with sql2005 version and they are running slow on 2008 server.

Note :

No changes in schema
No new queries


Thanks for your suggestions



Do a post upgrade checklist
https://www.google.com/#q=post+upgrade+checklist+sql+server

Muthukkumaran Kaliyamoorthy

Helping SQL DBAs and Developers >>>SqlserverBlogForum

Markus
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At minimum Microsoft recommends full update stats when you upgrade... however, I always rebuild the indexes as they recommend that if you have the time.



pmadhavapeddi22
pmadhavapeddi22
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Thank you all for your responses. As of Now, I have given scripts for rebuilding indexes. Yet to implement this.
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