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 find out what query is using an index
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Kimi86
Yak Posting Veteran

78 Posts

Posted - 02/07/2013 :  07:20:04  Show Profile  Reply with Quote
I am trying to find out what query is using a particular index in my database.
When I look at sys.dm_db_index_usage_stats the count for User_seeks keeps going up but I dunno any place where it must be being used. I basically want to delete it as a work around since i have some space issues in my database and adding space will take some time. I know that the index is being used somewhere looking at sys.dm_db_index_usage_stats but i am quite puzzled what program or query is using it.. Any idea what I can do

srimami
Posting Yak Master

160 Posts

Posted - 02/08/2013 :  17:21:14  Show Profile  Reply with Quote
Use the following query and see if User_seeks or user_Scans are being used. If user_seeks & user_scans are Zero, you can drop the indexes.

SELECT OBJECT_NAME(S.[OBJECT_ID]) AS [OBJECT NAME],
I.[NAME] AS [INDEX NAME],
USER_SEEKS,
USER_SCANS,
USER_LOOKUPS,
USER_UPDATES
FROM SYS.DM_DB_INDEX_USAGE_STATS AS S
INNER JOIN SYS.INDEXES AS I
ON I.[OBJECT_ID] = S.[OBJECT_ID]
AND I.INDEX_ID = S.INDEX_ID
WHERE OBJECTPROPERTY(S.[OBJECT_ID],'IsUserTable') = 1

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