When your server experiences LCK% waits, it means queries are waiting on other queries to release their locks. Most of the time, you can work around this by doing index tuning. However, it’s tricky to understand whether LCK% waits mean you have too many indexes, or not enough. In this lecture, we’ll do a series…
2.4 Tuning Indexes to Avoid Blocking
When your server experiences LCK% waits, it means queries are waiting on other queries to release their locks. Most of the time, you can work around this by doing index tuning. However, it’s tricky to understand whether LCK% waits mean you have too many indexes, or not enough. In this lecture, we’ll do a series...
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- 0.1 Prerequisites Before the Class (~4 hours)
- 1.2 The D.E.A.T.H. Method: Dedupe and Eliminate
- 1.3 D.E. Tools and Their Weaknesses
- 1.4 Lab 1 Setup: Dedupe and Eliminate
- 1.4b Lab 1: Dedupe and Eliminate – Brent Does It
- 1.5 The D.E.A.T.H. Method: Tuning Indexes for Specific Queries
- 1.6 Lab 2 Setup: Tuning Indexes for Specific Queries
- 1.7 Lab 2: Tuning Indexes for Specific Queries – Brent Does It
- 2.1 Adding Indexes with the DMVs
- 2.2 Tuning to Avoid Key Lookups and Residual Predicates
- 2.3 Lab 3 Setup: Adding Indexes with Clippy and the DMVs
- 2.3b Lab 3: Adding Indexes with Clippy and the DMVs – Brent Does It
- 2.5 Lab 4 Setup: Solving Blocking with Indexes
- 2.6 Lab 4: Solving Blocking with Indexes – Brent Does It
- 3.1 Filtered Indexes, Indexed Views, Computed Columns, and Partitioning
- 3.2 Lab 5 Setup: Leveraging Artisanal Indexes
- 3.2b Lab 5: Leveraging Artisanal Indexes – Brent Does It
- 3.3 The D.E.A.T.H. Method – Heaps and Clustered Indexes
- 3.4 Foreign Key and Check Constraints
- 3.5 Tips from the Index Sommelier
- 3.6 Lab 6 Setup and Final Lessons
- 3.7 Lab 6: Doing the D.E.A.
- 3.8 Lab 6: Tuning Indexes for Specific Queries
- About the Lab Exercises
- Bonus: Storytelling Time