dbTalk Databases Forums  

auto updatable statistics performance impact during loading?

microsoft.public.sqlserver.dts microsoft.public.sqlserver.dts


Discuss auto updatable statistics performance impact during loading? in the microsoft.public.sqlserver.dts forum.



Reply
 
Thread Tools Display Modes
  #1  
Old   
Jéjé
 
Posts: n/a

Default auto updatable statistics performance impact during loading? - 08-25-2004 , 09:02 PM






Hi,

does the "auto update stats" feature of statistics as an impact of the
performance during bulk insert operation?

Does it recommended to disable the auto update for the stats, and manually
update these stats at the end of the loading process?

I'll load 6millions of rows every day :
1. I truncate my tables
2. I reload my tables

Incremental loading cannot work correctly in my case. its why I must reload
this information. Its why I want to optimize my loading process.

Thamks.

Jerome.



Reply With Quote
  #2  
Old   
Jacco Schalkwijk
 
Posts: n/a

Default Re: auto updatable statistics performance impact during loading? - 08-26-2004 , 06:08 AM






Turning of auto update stats will result in a small improvement in
performance. However, what will make for a far larger improvement in
performance is to drop the indexes on the table and recreate them after the
import has completed.

--
Jacco Schalkwijk
SQL Server MVP


"Jéjé" <willgart (AT) BBBhotmailAAA (DOT) com> wrote

Quote:
Hi,

does the "auto update stats" feature of statistics as an impact of the
performance during bulk insert operation?

Does it recommended to disable the auto update for the stats, and manually
update these stats at the end of the loading process?

I'll load 6millions of rows every day :
1. I truncate my tables
2. I reload my tables

Incremental loading cannot work correctly in my case. its why I must
reload this information. Its why I want to optimize my loading process.

Thamks.

Jerome.





Reply With Quote
Reply




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.