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 Update Stats after index creation in SQL SERVER 08		  New Topic  Reply to Topic
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anonymous2009
Starting Member

8 Posts
Posted - 05/01/2012 :  17:45:01  Show Profile  Reply with Quote
Hello,
When a new index is added to an existing table with rows in it, is it always required to execute the following to update the stats (or) will Create Index will inturn also updatethe stats?

USE DBName;
GO
EXEC sp_updatestats

Would this gather stats for all the tables in database DBName?
Thanks!

robvolk
Most Valuable Yak

USA
15557 Posts
Posted - 05/01/2012 :  17:49:23  Show Profile  Visit robvolk's Homepage  Reply with Quote
It's not required, they do different things. CREATE INDEX will create the statistics for just that index. sp_updatestats works on all tables.
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anonymous2009
Starting Member

8 Posts
Posted - 05/01/2012 :  18:14:03  Show Profile  Reply with Quote
ok got it.
Thanks!
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jackv
Flowing Fount of Yak Knowledge

United Kingdom
1765 Posts
Posted - 05/02/2012 :  01:38:20  Show Profile  Visit jackv's Homepage  Reply with Quote
By default CREATE INDEX will do a statistics refresh - this can't be turned off.

There is another parameter in CREATE INDEX : STATISTICS_NORECOMPUTE. This defines whether the "auto_update_stats" is on or off for this index

Jack Vamvas
--------------------
http://www.sqlserver-dba.com
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