Book Image

Microsoft SQL Server 2012 Performance Tuning Cookbook

Book Image

Microsoft SQL Server 2012 Performance Tuning Cookbook

Overview of this book

As a DBA you must have encountered a slow running application on SQL Server, but there are various factors that could be affecting the performance. If you find yourself in this situation, don't wait, pick up this book and start working towards improving performance of your SQL Server 2012. SQL Server 2012 Performance Tuning Cookbook is divided into three major parts -- Performance Monitoring, Performance Tuning, and Performance Management--that are mandatory to deal with performance in any capacity. SQL Server 2012 Performance Tuning Cookbook offers a great way to manage performance with effective, concise, and practical recipes. You will learn how to diagnose performance issues, fix them, and take precaution to avoid common mistakes. Each recipe given in this book is an individual task that will address different performance aspects to take your SQL Server's Performance to a higher level.The first part of this book covers Monitoring with SQL Server Profiler, DTA, System statistical function, SPs with DBCC commands, Resource Monitor & Reliability, and Performance Monitor and Execution Plan. The second part of the book offers Execution Plan, Dynamic Management Views, and Dynamic Management Functions, SQL Server Cache and Stored Procedure Recompilations, Indexes, Important ways to write effective TSQL, Statistics, Table and Index Partitioning, Advanced Query tuning with Query Hints and Plan Guide, Dealing with Locking, Blocking and Deadlocking and Configuring SQL Server for optimization to boost performance.The third and final part gives you knowledge of performance management with help of Policy Based Management and Management with Resource Governor.
Table of Contents (28 chapters)
Microsoft SQL Server 2012 Performance Tuning Cookbook
Credits
About the Authors
Acknowledgement
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Detecting deadlocks with Trace Flag 1204


In the previous recipe, Detecting deadlocks with SQL Server Profiler, we learned to detect deadlocks using SQL Server Profiler. This can be useful when deadlocks occur regularly in a specific pattern and you are able to reproduce them by executing certain part of application code that you know produces the deadlock. For this type of investigation, you simply start an SQL Trace session, reproduce the deadlock condition, and analyze the queries.

However, when deadlocks occur irregularly, without any specific pattern, it becomes hard for you to investigate them because you do not know in which case they occur. Thus, it also becomes difficult for you to reproduce them. To troubleshoot such irregular deadlocks, you might prefer not to keep a trace session running and wait for deadlocks to occur for hours.

This recipe will show you how you can configure SQL Server so that whenever deadlocks occur, SQL Server logs the deadlock-related information into the...