Download - The Side Effect of NOLOCK
Transcript
Jason St rateDatabase Arch i tec tPragmat ic Works , Inc .
THE SIDE EFFECT OF NOLOCK
WWW.JASONSTRATE.COM
WE NEED SPEED!
THE PROBLEM!
http://bit.ly/18yv3tnhttp://www.flickr.com/photos/oxborrow
THE DATA OF BOB AND FRED
THE DATA OF BOB AND FRED
THE DATA OF BOB AND FRED
THE DATA OF BOB AND FRED
NO ROOM!
THE DATA OF BOB AND FRED
PAGE
SPLIT
THE DATA OF BOB AND FRED
WHAT?!
THE DATA OF BOB AND FRED
WHAT?!
Demo 1NOLOCK
DEMO
1. NOLOCK is not an acceptable locking fix.
2. You are risking yours and other people’s data.
3. Troubleshooting is impossible.
4. Research SNAPSHOT ISOLATION level
SUMMARY
Jason Strate
b: www.jasonstrate.com
t: StrateSQL
Related Content
www.jasonstrate.com/tag/locking
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