July 2012
Intermediate to advanced
478 pages
10h 3m
English
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Chapter 8. SQL Server Cache and Stored Procedure Recompilations
In this chapter we will cover:
- Monitoring compilations and recompilations at instance level, using Reliability and Performance Monitor
- Monitoring recompilations using SQL Server Profiler
Introduction
When a query, a batch, or a stored procedure is submitted to SQL Server for execution for the first time, the query gets parsed and then compiled. The result of a compiled query is a query plan that is cached in the procedure cache. The procedure cache is a portion of memory that SQL Server allocates to cache its query plans.
When the query is executed, an execution plan with its execution context is derived from the cached query plan, in order to save time during query execution, because ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.