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How frequently should an update stats job run Expand / Collapse
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Posted Friday, September 21, 2012 10:28 AM
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Hi All,

Hope all is well.

Currently I am updating statistics on specific tables (identified them based on modified rows) daily at 2:00AM. Are there any disadvantages if I update stats twice or thrice a day?

Thanks for ur inputs.


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Post #1362835
Posted Friday, September 21, 2012 10:42 AM
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How big is the table? How frequently is it changed and what percentage of rows? How frequently is it accessed?
Post #1362845
Posted Friday, September 21, 2012 10:46 AM


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I have seen it where once a week is good enough, but i have also seen it where it needed to be run every two hours to keep the application performance where it needed to be. Really comes down to "it depends."

Please note, where it was being run every two hours, it was on a single, large, volitale table.



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Post #1362848
Posted Sunday, September 23, 2012 11:35 AM


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Sapen (9/21/2012)
Currently I am updating statistics on specific tables (identified them based on modified rows) daily at 2:00AM.

Just curious, are you applying your own algortihm using sys.sysindexes.rowmodctr?


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