How to find open query executed once on SQL server

Hi Experts ,
Is there any way to identify that open query executed once on Db server using any DMv's ? we are planning enabale opimized for ad-hoc queries on SQL server ?
Shivraj Patil.

Hi,
You can use below query  to find the plans that have been used only once.
SELECT text, cp.objtype, cp.size_in_bytes
FROM sys.dm_exec_cached_plans AS cp
CROSS APPLY sys.dm_exec_sql_text(cp.plan_handle) st
WHERE cp.cacheobjtype = N'Compiled Plan'
AND cp.objtype IN(N'Adhoc', N'Prepared')
AND cp.usecounts = 1
ORDER BY cp.size_in_bytes DESC
OPTION (RECOMPILE);
additionally you can also refer below articles.
http://sqlmag.com/database-performance-tuning/sql-server-plan-cache-junk-drawer-your-queries
Plan cache and optimizing for adhoc workloads
Please mark solved if I've answered your question, vote for it as helpful to help other users find a solution quicker
Praveen Dsa | MCITP - Database Administrator 2008 |
My Blog | My Page

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