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Learn T-SQL Querying

You're reading from   Learn T-SQL Querying A guide to developing efficient and elegant T-SQL code

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Product type Paperback
Published in Feb 2024
Publisher Packt
ISBN-13 9781837638994
Length 456 pages
Edition 2nd Edition
Languages
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Authors (2):
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Pedro Lopes Pedro Lopes
Author Profile Icon Pedro Lopes
Pedro Lopes
Pam Lahoud Pam Lahoud
Author Profile Icon Pam Lahoud
Pam Lahoud
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Table of Contents (18) Chapters Close

Preface 1. Part 1: Query Processing Fundamentals
2. Chapter 1: Understanding Query Processing FREE CHAPTER 3. Chapter 2: Mechanics of the Query Optimizer 4. Part 2: Dos and Don’ts of T-SQL
5. Chapter 3: Exploring Query Execution Plans 6. Chapter 4: Indexing for T-SQL Performance 7. Chapter 5: Writing Elegant T-SQL Queries 8. Chapter 6: Discovering T-SQL Anti- Patterns in Depth 9. Part 3: Assembling Our Query Troubleshooting Toolbox
10. Chapter 7: Building Diagnostic Queries Using DMVs and DMFs 11. Chapter 8: Building XEvent Profiler Traces 12. Chapter 9: Comparative Analysis of Query Plans 13. Chapter 10: Tracking Performance History with Query Store 14. Chapter 11: Troubleshooting Live Queries 15. Chapter 12: Managing Optimizer Changes 16. Index 17. Other Books You May Enjoy

Remote collection with SQL LogScout

While configuring an XEvent session is simple enough when you have access to the server, if you find yourself in a situation where you need to analyze server or application performance remotely, XEvents can be a challenge. As we discussed in the Introducing XEvents section, we can save the XEvent session as a script file and send it to someone to run, but to analyze the data, we’ll need a file target, and configuring one requires knowledge of the disk layout of the system. Also, we would need to ensure that the person we send the script to has at least basic SQL Database Engine knowledge such as how to open, edit, and execute a T-SQL script along with the rights to create an XEvent session. If the person who has access to the server is not a database professional, this might be a challenge.

This is the type of troubleshooting that Microsoft Support must do every day. To make the job easier, they created a tool called SQL LogScout, which...

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