Showing posts with label stats. Show all posts
Showing posts with label stats. Show all posts

Friday, March 30, 2012

index statistics are created when?

If the auto create stats and auto update stats is off (actually the value is null) at the db level - are stats generated when an index is recreated?

Additionaly, running the sp_autostats on the above db shows that the auto update stats are on. Where is the option to set it on for an object rather than the db?

Mike

I just read by Kalen that if the options are false (off) this overrides the table level. Still not clear on what occurs when options are <null>True when you run DBCC DBREINDEX those stats will be updated too.

SP_AUTOSTATS is used to display or change the automatic UPDATE STATISTICS setting for a specific index and statistics, or for all indexes and statistics for a given table or indexed view in the current database.