May 2019
Intermediate to advanced
484 pages
11h 23m
English
Content preview from Learn T-SQL Querying
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Tracking Performance History with Query Store
This chapter will introduce the Query Store, which is effectively a flight recorder for SQL Server T-SQL executions, allowing performance tracking over time and analysis of workload trends through rich UI reports that are included with SSMS.
We will also see how the Query Store integrates with the Query Plan Comparison, which was covered in Chapter 10, Comparative Analysis of Query Plans, for a complete UI-driven workflow for query performance insights.
This chapter covers the following topics:
- The Query Store
- Tracking expensive queries
- Fixing regressed queries
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.