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SQL Server 2008
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T-SQL (SS2K8)
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user_seeks Vs user_scan
user_seeks Vs user_scan
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Shadab Shah
Shadab Shah
Posted Tuesday, September 25, 2012 8:51 AM
SSC-Enthusiastic
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Last Login: 2 days ago @ 6:48 AM
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Hi,
I tried finding this (user_seeks Vs user_scan) out on internet but no proper explanation is present for this. I was able to find the difference between index_seeks vs index_scan but i would like to know about what is meant by user_seeks and user_scan.
I don't want the exact difference but what they mean.
Post #1364096
Roland Alexander STL
Roland Alexander STL
Posted Tuesday, September 25, 2012 8:55 AM
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Last Login: Monday, May 13, 2013 6:43 AM
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User seeks and scans are those initiated by stored procedures or ad hoc queries issued by users (such as you), as opposed to those initiated by the system.
Roland Alexander
The Developing World
There are two means of refuge from the miseries of life: music and cats.
~ Albert Schweitzer
Post #1364101
Shadab Shah
Shadab Shah
Posted Tuesday, September 25, 2012 8:42 PM
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I found out that user_seek means number of times when the user issues the command like select fname from emp
and user_scan means the number of time the user issue select * from emp.
Post #1364403
GilaMonster
GilaMonster
Posted Wednesday, September 26, 2012 1:14 AM
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User_seeks will be the number of times a user query could use a seek on the index (execution plan shows an index seek operation), user scans is the number of times that a user query had to scan the index to get the necessary results.
Any select without a where clause will be a scan.
Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild
: Discussions on DB performance with occasional diversions into recoverability
We walk in the dark places no others will enter
We stand on the bridge and no one may pass
Post #1364469
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