Quantcast
Channel: Kimberly L. Tripp - Filtered indexes and filtered stats might become seriously out-of-date
Mark channel Not-Safe-For-Work? cancel confirm NSFW Votes: (0 votes)
Are you the publisher? Claim or contact us about this channel.
0

.NET Geek on Filtered indexes and filtered stats might become seriously...

Trackback from .NET GeekMy Favorite SQL Server 2k8 Feature

View Article

Kimberly L. Tripp on Filtered indexes and filtered stats might become...

Jason - Good point! Something that we can do for filtered stats (since I'm generally recommending micro managing them anyway) is to add STATISTICS_NORECOMPUTE to the index creation or NORECOMPUTE to...

View Article

Jason Massie on Filtered indexes and filtered stats might become seriously...

I am also seeing that a histogram is not created for very selective filtered stats unless full scan is used. This goes for creation and updates. The bad thing is that even if you update with full scan,...

View Article


Kimberly L. Tripp on Filtered indexes and filtered stats might become...

Gail - Yeah... this is where I was at and why I posted this post. Having said that, even with the multiplier (if it does exist) it's still expecting [potentially] a much larger number of rows (on...

View Article

Gail on Filtered indexes and filtered stats might become seriously out-of-date

Just did a quick test. A million row table with a filtered index defined over 10000 rows. I had to update the column in that filtered index 257000 times (some rows likely getting updated multiple...

View Article

Mark woodward on Filtered indexes and filtered stats might become seriously...

Hi,very nice article!About the stats, if you know what nidexes are used when your SQL runs, you can update the stats of those indexes only (perhaps giving a more higher sample). There is a utility by...

View Article


Kimberly L. Tripp on Filtered indexes and filtered stats might become...

Hey there Gail - Yep, I read that... and, I'm not seeing that... which is the reason for the post. Feel free to do more testing. But, even if it does get close to even 20%; the problem with filtered...

View Article

Gail on Filtered indexes and filtered stats might become seriously out-of-date

The SQL 2008 version of the whitepaper (msdn.microsoft.com/en-us/library/dd535534.aspx) states for filtered statistics:"To determine when statistics need to be automatically updated, the query...

View Article

Kimberly L. Tripp on Filtered indexes and filtered stats might become...

Yes, sp_updatestats will work... and, it's a great point as sp_updatestats is solely based on the index's rowmodctr. However, sp_updatestats is a bit of a sledgehammer for stats because it will update...

View Article


Nicolas Husson on Filtered indexes and filtered stats might become seriously...

there is an updated version of the above mentioned white papers for 2008 msdn.microsoft.com/en-us/library/dd535534.aspx

View Article

SuperCoolMoss on Filtered indexes and filtered stats might become seriously...

Will running SP_UPDATESTATS on a daily basis against the database suffice?

View Article