Update Statistics in All User Databases

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Update Statistics in All User Databases

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Michael Valentine Jones
Yak DBA Kernel (pronounced Colonel)

7020 Posts

Posted - 2008-11-12 : 12:09:56

This is a script that I use to quickly setup a daily job in SQL Server 2005 to update the statistics on all user databases.

It takes advantage of the enhanced functionality of procedure sp_updatestats in SQL Server 2005 to only update the stats when needed, so it has a fast runtime.

It uses of the VARCHAR(MAX) datatype to hold the entire command in one batch, so there is no need to open a cursor.

Edit: Added code to select only databases that are online, updateable, and not in single user mode.


/*
Update Statistics in All User Databases
Works in SQL Server 2005 and above
*/

declare @cmd nvarchar(max)
set @cmd = ''

-- Build command to update statistics
select @cmd = @cmd+
'
use '+quotename(a.name)+'

print 	''***	Start Update Statistics for database ''+quotename(db_name())+
	'' at ''+convert(varchar(30),getdate(),121)

exec sp_updatestats

print 	''***	End   Update Statistics for database ''+quotename(db_name())+
	'' at ''+convert(varchar(30),getdate(),121)

'
from
	(
	select top 100 percent
		aa.name
	from
		sys.sysdatabases aa
	where
		-- Exclude system database
		-- Add more database names to exclude as needed.
		name not in  ('master','model','msdb','tempdb')	and
		-- Include only databases that are online
		databasepropertyex(aa.name,'Status') = 'ONLINE'	and
		-- Include only databases that are updatable
		databasepropertyex(aa.name,'Updateability') = 'READ_WRITE'	and
		-- Exclude databases in single user mode
		databasepropertyex(aa.name,'UserAccess ') in ('RESTRICTED_USER','MULTI_USER')
	order by
		aa.name
	) a

print '***	Start Update Statistics at '+convert(varchar(30),getdate(),121)
exec ( @cmd )	-- Execute Update Statistics commands
print '***	End   Update Statistics at '+convert(varchar(30),getdate(),121)

CODO ERGO SUM

sodeep
Master Smack Fu Yak Hacker

7174 Posts

Posted - 2008-11-12 : 13:13:49

I excluded print part. How about this?

EXEC sp_MSForeachdb 'USE

IF ''?'' <> ''master'' AND ''?'' <> ''model'' AND ''?'' <> ''msdb'' AND ''?'' <> ''tempdb''
BEGIN
EXEC sp_updatestats
END
'

Michael Valentine Jones
Yak DBA Kernel (pronounced Colonel)

7020 Posts

Posted - 2008-11-12 : 13:59:23

quote:
Originally posted by sodeep

I excluded print part. How about this?

EXEC sp_MSForeachdb 'USE IF ''?'' <> ''master'' AND ''?'' <> ''model'' AND ''?'' <> ''msdb'' AND ''?'' <> ''tempdb''
BEGIN
EXEC sp_updatestats
END
'

I know you can do it that way, but I did this to avoid using the undocumented proc.

CODO ERGO SUM

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