The slide deck and demo scripts (zip) is here (last updated 2022-06-15.) The slide deck is just a few slides that I use at the beginning and end of the class, not very useful for note-taking. The real meat is in the demo scripts in each module, and those are exactly the same in the…
0.2 Download the Slides and Scripts
The slide deck and demo scripts (zip) is here (last updated 2022-06-15.) The slide deck is just a few slides that I use at the beginning and end of the class, not very useful for note-taking. The real meat is in the demo scripts in each module, and those are exactly the same in the…
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- 0.1 Prerequisites Before the Class
- 1.1 How Index Tuning Reduces the Stench
- 1.2 How Query Hints Reduce the Stench
- 1.3 The Drawbacks of Using Recompile Hints
- 1.4 Lab 1: Get One Plan to Work Well Enough for Most
- 1.5 Bad Branching Causes Sniffing, Good Branching Reduces It
- 1.6 Lab 2: Reducing Sniffing by Caching Multiple Plans
- 2.1 Spotting Wild Variations in the Plan Cache
- 2.2 How Freeing the Plan Cache Reduces the Blast Radius: usp_PlanCacheAutopilot
- 2.3 Tracking Even More Plan Cache Details with Query Store
- 2.4 Lab 3: Track Down Plans & Parameters
- 3.1 How Memory Grant Feedback Multiplies Parameter Sniffing
- 3.2 How Adaptive Joins Help, and How to Get Them
- 3.3 How Automatic Tuning Mitigates Parameter Sniffing
- 4.1 Lab 4 Setup: Fixing the Problems You’ve Been Tracking Down
- 4.2 Tuning usp_SearchPostsByPostType
- 4.3 Tuning usp_RptFastestAnswers
- 4.4 Tuning usp_SearchPostsByLocation
- 4.5 Tuning usp_RptQuestionsAnsweredForUser
- 4.6 Tuning usp_SearchUsers
- 4.7 Tuning usp_RptPostLeaderboard
- 4.8 Tuning usp_RptAvgAnswerTimeByTag
- 4.9 Tuning usp_GetTagsForUser
- Bonus Lab: Seeing the Effects of SQL Server 2019 Compat Mode
- Bonus: Storytelling Time