occational updateStats failing.

in the nightly maintenance job, the update statistics failed.
           specifically on one table.. and Error: 5242 was reported.
           this is the second time the same error has happened as part of the UPDATE STATISITICS step in one week (it runs every night).
           
           i ran the update statistics now manually on both tables and they worked fine:
(syntax: UPDATE STATISTICS <tablename> WITH FULLSCAN) )

running DBCC checkdb now returns no error.
           
           http://www.sqlskills.com/blogs/paul/corruption-errors-msg-5242-level-22/ suggests it is surely data corruption.
                               
           if it is, why would they work now fine, when run manually?
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25112Asked:
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Vitor MontalvãoMSSQL Senior EngineerCommented:
Are you running UPDATES STATISTICS daily?
When do you run Reindexes or Rebuilds?
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25112Author Commented:
it is part of maintenance plan:

The below are the steps covered: (these are run every night together).

Backup
Compress backup
Delete Old Backup file
Database Integrity
Rebuild
Reindex
Update Stats
History Cleanup
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Vitor MontalvãoMSSQL Senior EngineerCommented:
You don't need to run Rebuild, Reindex and Update Stats daily.
If you run Rebuild there's no need for Reindex and Update Stats.
And avoid the SQL Server Maintenance Plan. Try to create your own maintenance plan. There are some good scripts in the internet. I like this one from Ola Hallengren.
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Microsoft SQL Server 2005

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