About Auto_update_statistics

Sep 4, 2007

My db is about 80G, and I turned this option auto_update_statistice on
How can i know when this run? How can i say if this is running at inappropriate times?
Many thanks

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AUTO_UPDATE_STATISTICS A Good Idea?

May 20, 2003

Can anyone tell me if turning on the AUTO_UPDATE_STATISTICS option will have any adverse effects on performance? I've read that it is possible for it to adversely affect performance, because SQL Server “takes a quick break to update database statistics in the middle of the day”. The book does not explain why and I'm always leery of simply accepting something, simply because I’ve read it from a book. This is the first time that I’ve ever heard this and cannot find anything from SQL BOL or any other source.

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