Database updates statistics maintenance plan issue.

Question

Hi team,
We are configured one job through maintenance plan that job name is “database update statistics” and database size is 280 Gb, this job executing 13 to 15 hours but job was not finished  still it’s continually running.
This same job I am running through below script it’s executing within 2 hours.
Use database
Go
Exec sp_updatestats
What is the main problem if this maintenance plan.
Note: on this server no jobs and no traffic, only abc_update subpaln1 Job.

Answer 1

Hello,
Updating stats for whole database which is 280 G will always result in problem.It is better to run update statistics for tables and indexes which are changed frequently.
Now to your question few points which sp_Updatestas list in BOL
http://technet.microsoft.com/en-us/library/ms173804.aspx
sp_updatestats updates statistics on disabled nonclustered indexes and does not update statistics on disabled clustered indexes.
sp_updatestats updates only the statistics that require updating based on the rowmodctr information in the sys.sysindexes catalog view, thus avoiding unnecessary updates of statistics
on unchanged rows.
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