July 2012
Intermediate to advanced
478 pages
10h 3m
English
Content preview from Microsoft SQL Server 2012 Performance Tuning CookbookBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 16. Dealing with Locking, Blocking, and Deadlocking
In this chapter we will cover:
- Determining long-running transactions
- Detecting blocked and blocking queries
- Detecting deadlocks with SQL Server Profiler
- Detecting deadlocks with Trace Flag 1204
Introduction
Transactions are an integral part of any OLTP database system. They manage data consistency and data concurrency issues, to make sure that data always remains in a valid state in the database, when multiple sources read or update the same data at the same time. In SQL Server, this is achieved through a locking mechanism that SQL Server applies while reading and writing data from and to the database. The lock manager in SQL Server is responsible for applying this locking mechanism. SQL Server ...
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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.
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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.