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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 May 2019
Publisher Packt
ISBN-13 9781789348811
Length 484 pages
Edition 1st Edition
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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
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Pam Lahoud
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Table of Contents (18) Chapters Close

Preface 1. Section 1: Query Processing Fundamentals FREE CHAPTER
2. Anatomy of a Query 3. Understanding Query Processing 4. Mechanics of the Query Optimizer 5. Section 2: Dos and Donts of T-SQL
6. Exploring Query Execution Plans 7. Writing Elegant T-SQL Queries 8. Easily-Identified T-SQL Anti-Patterns 9. Discovering T-SQL Anti-Patterns in Depth 10. Section 3: Assemble Your Query Troubleshooting Toolbox
11. Building Diagnostic Queries Using DMVs and DMFs 12. Building XEvent Profiler Traces 13. Comparative Analysis of Query Plans 14. Tracking Performance History with Query Store 15. Troubleshooting Live Queries 16. Managing Optimizer Changes with the Query Tuning Assistant 17. Other Books You May Enjoy

Getting up and running with XEvent Profiler

One of the benefits of SQL Server Profiler was that it was very easy to get a trace going quickly. With all its built-in templates, we can open the tool, click on Start, and we're up and running. This is very handy if there's an ongoing problem that we need to diagnose quickly.

All the templates that were available in Profiler are available in XEvents, and we can access them from the New Session window as in the following screenshot:

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The only problem with setting up an XEvent session is that it requires a few more steps than creating a live Profiler trace. Once we add the template, we then need to check the boxes for Start the event session immediately after session creation and Watch live data on screen as it is captured, or add a target. Once the session is running, only the name and timestamp fields will be visible in...

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