How to find which query taking more cpu

Hi,
How to find which query taking more CPU
at a particular point of time .
Chhers,

Take a look at Server Standard Reports. It has a few CPU usage oriented reports.
You can also track CPU usage by server-side tracing:
http://www.sqlusa.com/bestpractices/createtrace/
Glenn Berry's CPU usage query:
SELECT TOP(25) p.name AS [SP Name], qs.total_worker_time AS [TotalWorkerTime],
qs.total_worker_time/qs.execution_count AS [AvgWorkerTime], qs.execution_count,
ISNULL(qs.execution_count/DATEDIFF(Second, qs.cached_time, GETDATE()), 0) AS [Calls/Second],
qs.total_elapsed_time, qs.total_elapsed_time/qs.execution_count
AS [avg_elapsed_time], qs.cached_time
FROM sys.procedures AS p WITH (NOLOCK)
INNER JOIN sys.dm_exec_procedure_stats AS qs WITH (NOLOCK)
ON p.[object_id] = qs.[object_id]
WHERE qs.database_id = DB_ID()
ORDER BY qs.total_worker_time DESC OPTION (RECOMPILE);
LINK:
http://dba.stackexchange.com/questions/52216/sql-server-2008-high-cpu-historical-queries
Query optimization:
http://www.sqlusa.com/articles/query-optimization/
Kalman Toth Database & OLAP Architect
SELECT Video Tutorials 4 Hours
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012

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The mechanisms behind it are depending on your database version.
For example:
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Hello,
You may try to catch the SQL with a Servererror Trigger.
This link will give you an interesting example:
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hi all,
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Subhash,
A quick and dirty Google search could have get you started with the following:
Thread: how to get top CPU consuming sql oracle 10g
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Hi,
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Hi,
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Hi Expart,
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Ace Fekay
MVP, MCT, MCSE 2012, MCITP EA & MCTS Windows 2008/R2, Exchange 2013, 2010 EA & 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003
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Hi,
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PS1 is my Production system(R/3)
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Hi Ruchit,
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How to find database query

Hi all,
how to find physical query from report here m checking like Administrator->manage session--> report-->view log
+++Administrator:3220000:3220011:----2011/01/03 02:51:43
-------------------- SQL Request:
+++Administrator:3220000:3220011:----2011/01/03 02:51:43
-------------------- General Query Info:
Repository: Star, Subject Area: AAA, Presentation: AAA
+++Administrator:3220000:3220011:----2011/01/03 02:51:43
-------------------- Cache Hit on query:
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+++Administrator:3220000:3220011:----2011/01/03 02:51:43
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+++Administrator:3220000:3220011:----2011/01/03 02:51:43
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+++Administrator:3220000:3220011:----2011/01/03 02:51:43
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+++Administrator:3220000:3220011:----2011/01/03 02:51:43
-------------------- Logical Query Summary Stats: Elapsed time 0, Response time 0, Compilation time 0 (seconds)
but here m not able to find database query..how to find that query plz help
Edited by: Sonal on Jan 3, 2011 5:29 AM
Edited by: Sonal on Jan 3, 2011 5:30 AM
Edited by: Sonal on Jan 3, 2011 5:30 AM

Hi,
as Daan said, set the variable in Advanced tab but not on loglevel..
because, our problem is to bypass the bi-server cache.
Do this:
1. Go to Advanced tab.
2. In Prefix field(scroll down to see this field) , enter this:
SET DISABLE_CACHE_HIT = 1;
Note: Make sure that you're ended up above statement with semicolon and do not click on Set SQL option...
3. Save report, then run it..
4. After you see the query, i recommend you to take take out that prefix tag then save it again..

How to find a query name from report name

I have a report in my system with the name AQICMM==========P2============ . I believe this was created from a query. How to find the query corresponding to this report ? I need to change the logic for certain columns of the report. How to know if this was created from SQVI or SQ01 or any other transaction.
THanks.

Found it..Query name is P2. It was in a different query area..Standard area and not custom area where I was initially looking at.
Edited by: Shareen Hegde on Aug 22, 2008 5:14 PM

How to find which query taking more cpu

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