improve/detect query cache resuse

In SQL Server 2008, how does one assure that a query plan is being resused from cache?

How can one detect if it's being reused from cache?
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

This should show you the query cache:

SELECT p.objtype, p.size_in_bytes, t.[text], p.usecounts
     FROM sys.dm_exec_cached_plans p
     OUTER APPLY sys.dm_exec_sql_text (p.plan_handle) t
     WHERE objtype not IN ('Proc', 'View', 'UsrTab', 'Check', 'Prepared', 'Adhoc')
     ORDER BY usecounts DESC

Open in new window

Take out the object types you're not interested in.

(Compatibility level 90 databases and above)


DcpKing gave you a basic query that shows what plans are cached and how many times there used.  Reuse of a query plan is standard for same query.

Here link to the basics , including a list of things that prevent a plan to be reused

When you have the above query, it's worth to link it to other DMV's that give you more info on the usage

Like the execution statistics

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server 2008

From novice to tech pro — start learning today.