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DBCC PINTABLE


DBCC PINTABLE

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madhu-686862
madhu-686862
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Does DBCC PINTABLE command works in SQL Server 2008 R2?

We want to pin heavily used look up tables in cache. Is it possible in SQL Server 2008 R2?

Are there any methods available to achieve this?
GilaMonster
GilaMonster
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No it does not work, hasn't worked since 2000. No, you cannot force tables into cache, there's no need, SQL's memory management and buffer management is good enough. PinTable tended to cause more problems than it solved.

Heavily used lookup tables will remain in cache because they're heavily used.

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

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Paul Randal
Paul Randal
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No - I removed it in SQL Server 2005 because people were causing problems for themselves. See http://www.sqlskills.com/blogs/paul/dbcc-pintable/ for some explanation.

If you find a table is dropping out of cache, even though heavily used, because other tables are also heavily used and they can't all be kept in memory, put in a SQL Agent job that does a SELECT COUNT (*) with an index hint to force index ID 1. Adjust periodicity as necessary.

Cheers

Paul Randal
CEO, SQLskills.com: Check out SQLskills online training!
Blog:www.SQLskills.com/blogs/paul Twitter: @PaulRandal
SQL MVP, Microsoft RD, Contributing Editor of TechNet Magazine
Author of DBCC CHECKDB/repair (and other Storage Engine) code of SQL Server 2005
madhu-686862
madhu-686862
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thanks for your valuable inputs
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