Adaptive Joins and Memory Grants in SQL Server
Adaptive joins let the optimizer choose between a Hash Join and a Nested Loop join at runtime, which can be fantastic for performance when row count …
Read MoreManaging Statistics in SQL Server for DBAs (videos)
Category:
query-performance
, database-administration
Want to learn more about managing statistics updates in SQL Server? Watch my 27 minute presentation on managing statistics.
Main Presentation
Q&A Session
You can also watch 12 minutes of audience Q&A on statistics from when I presented this on a live Hangout on Air. Questions include:
- Should I create single column statistics for non-leading key columns in an index?
- What is asynchronous statistics update?
- What are these statistics with “WA_sys” names?
- I have a bunch of user created statistics and it’s blocking a release. It is safe to drop them?
More Resources
Got more questions on statistics? Check out my reference post on Updating Statistics in SQL Server, and ask away in the comments of the post!
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