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SQL Server 2008
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SQL Server 2008 - General
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DBCC TABLE CHECK
DBCC TABLE CHECK
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learningguy
learningguy
Posted Thursday, March 01, 2012 9:19 AM
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Last Login: Thursday, March 01, 2012 10:06 AM
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I always see there are proceses in SQL about "DBCC TABLE CHECK"
1. I am trying to find out what trigger this process
2. is it the same or it come from DBCC check DB?
Thanks,
Post #1260247
sumitagarwal781
sumitagarwal781
Posted Thursday, March 01, 2012 9:27 AM
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DBCC checkdb is executing dbcc cehcktable as this is a part of consistency checking opertaion. you can also run only dbcc checktable for checking on table level.
java
Post #1260252
GilaMonster
GilaMonster
Posted Thursday, March 01, 2012 9:27 AM
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That's part of checkDB.
Nothing 'triggers' it. It happens when a user or job runs DBCC CheckTable or DBCC CheckDB.
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 #1260253
learningguy
learningguy
Posted Thursday, March 01, 2012 9:44 AM
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Thanks for all the input., that what I thought about DBCC check TABLE is from DBCC CHECK DB. There was no user that had privilege to run DBCC check DB on this database and I have no DBCC check DB job shceduled.
Do you know the way to trace who and why it run?
Thanks again
Post #1260275
GilaMonster
GilaMonster
Posted Thursday, March 01, 2012 9:46 AM
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A normal profiler trace should do it, or look in the default trace (should be caught under Audit DBCC Event)
Someone or something is running either CheckDB or CheckTable if you see that in running sessions, checkDB does not ever run by itself and nothing inside SQL will trigger it.
p.s. You need to do something about not having a regular checkDB job.
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 #1260277
learningguy
learningguy
Posted Thursday, March 01, 2012 9:56 AM
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I am planning to have checkDB weeekly but not running every 2-3 hours.
Post #1260285
SQLKnowItAll
SQLKnowItAll
Posted Thursday, March 01, 2012 9:57 AM
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Let me ask you this... Is this database accessed by a 3rd party application? The application itself may be sending this command.
Thanks,
Jared
SQL Know-It-All
How to post data/code on a forum to get the best help - Jeff Moden
Post #1260286
Eric Stimpson
Eric Stimpson
Posted Tuesday, August 28, 2012 8:04 AM
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In my environ, dbcc table check occurs, I believe due to backup option "checksum" which causes a page checksum calculation on every table's data prior to backup.
Post #1350967
GilaMonster
GilaMonster
Posted Tuesday, August 28, 2012 8:53 AM
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Eric Stimpson (8/28/2012)
In my environ, dbcc table check occurs, I believe due to backup option "checksum" which causes a page checksum calculation on every table's data prior to backup.
Checksum and checktable are two different things. Backups don't run checktable or checkDB.
The backup with checksum recalculates the checksums on each page backed up and then cacluates a checksum over the backup file.
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 #1351009
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