The Side Effect of NOLOCK

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Presentation based related to a blog post and video.
Blog: http://www.jasonstrate.com/2012/06/the-side-effect-of-nolock/
Video: http://www.youtube.com/watch?v=DS88Q4yDZWs

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The Side Effect of NOLOCK

  1. 1. Jason StrateDatabase ArchitectPragmatic Works, Inc.THE SIDE EFFECTOF NOLOCK
  2. 2. WWW.JASONSTRATE.COM
  3. 3. WE NEED SPEED!
  4. 4. THE PROBLEM!http://bit.ly/18yv3tnhttp://www.flickr.com/photos/oxborrow
  5. 5. THE DATA OF BOB AND FRED
  6. 6. THE DATA OF BOB AND FRED
  7. 7. THE DATA OF BOB AND FRED
  8. 8. THE DATA OF BOB AND FREDNO ROOM!
  9. 9. THE DATA OF BOB AND FREDPAGESPLIT
  10. 10. THE DATA OF BOB AND FREDWHAT?!
  11. 11. THE DATA OF BOB AND FREDWHAT?!
  12. 12. Demo 1NOLOCKDEMO
  13. 13. 1. NOLOCK is not anacceptable locking fix.2. You are risking yoursand other people’s data.3. Troubleshooting isimpossible.4. Research SNAPSHOTISOLATION levelSUMMARY
  14. 14. JasonStratee: jstrate@pragmaticworks.come: jasonstrate@gmail.comb: www.jasonstrate.comt: StrateSQLRelatedContentwww.jasonstrate.com/tag/lockingRESOURCES

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