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Prepared vs AdHoc - Plan Cache ObjType


Prepared vs AdHoc - Plan Cache ObjType

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Jared Karney
Jared Karney
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I would think that this would be an easy find with google... However, I have not found anything useful. So, gurus... What is the definition of a Prepared ObjType for a plan and what is the definition of an AdHoc ObjType for a plan; what distinguishes one from another and why is it important to me?

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Jared
PFE - Microsoft
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GilaMonster
GilaMonster
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Parameterised vs not parameterised. (though you can prepare a statement with hardcoded values in it :-) )

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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Jared Karney
Jared Karney
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GilaMonster (4/8/2013)
Parameterised vs not parameterised.
Excellent! Thanks Gail.

Thanks,
Jared
PFE - Microsoft
SQL Know-It-All
How to post data/code on a forum to get the best help - Jeff Moden
Tac11
Tac11
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Hi Gila,
Don't know if I can add on this thread. let me know for future reference. Anyway just have a question:
my 'Prepared' size is more than 'adHoc'. should I run dbcc freesystemcache ('sql plans') to minimize size of the 'Prepared' plan Cache Object? Is 'Prepared' as bad as 'adHoc'?
thank you
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