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How can I check the Long Running Query by using Stats..


How can I check the Long Running Query by using Stats..

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Chowdary's
Chowdary's
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Hi All,

Here am Using SQL 2008,
How can i check the Long Running Query by using the following Query and how to tune that query to improve the Performance ..

"select * from sys.dm_exec_query_stats"

Regards..
Jagadeesh...

Regards
Chowdary...
doug.brown
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Query tuning is a complex art, but Grant Fritchey's book on execution plans is a good resource to start with. It's available as a free pdf here:

http://www.red-gate.com/community/books/sql-server-execution-plans-ed-2
Jack Corbett
  Jack Corbett
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You can do this to get the plan:

SELECT
DEQP.query_plan
FROM
sys.dm_exec_query_stats AS DEQS
CROSS APPLY sys.dm_exec_query_plan(DEQS.plan_handle) AS DEQP
WHERE
[some criteria to determine what is long running]



Then you can examine the execution plan to determine where/what to start stuning.



Jack Corbett

Applications Developer

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Chowdary's
Chowdary's
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Thank u All.....
is there any Video Links for that Query Tuning...

Regards
Chowdary...
free_mascot
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You can find lots on google. Select as per your need.

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doug.brown
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I got some good tuning tips from this Brent Ozar video:
http://www.brentozar.com/archive/2014/01/watch-brent-tune-queries/
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