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Microsoft SQL Server 2012 Performance Tuning Cookbook

Microsoft SQL Server 2012 Performance Tuning Cookbook

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Microsoft SQL Server 2012 Performance Tuning Cookbook

Microsoft SQL Server 2012 Performance Tuning Cookbook

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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)
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Microsoft SQL Server 2012 Performance Tuning Cookbook
Credits
About the Authors
Acknowledgement
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
1
Index

Implementing a fixed execution plan using SQL plan guide


As plan guides can be used to specify query hints for SQL statements, they can also specify an execution plan instead of query hints to force an execution plan.

In this recipe, we first observe that even though there is a non-clustered index on ProductID column, some of the values of ProductID cause an index scan operation when data is retrieved. We will create an SQL plan guide so that all the queries as specified by the plan guide performs the index seek operation for every ProductID by forcing a previously saved execution plan.

Getting ready

We will see that ProductID 806 causes an index seek operation while ProductID 800 causes an index scan operation. We will generate an execution plan with an index seek operation and force that plan for the same type of queries so that for every ProductID an index seek is performed.

The following are the prerequisites for this recipe:

  • An instance of SQL Server 2012 Developer or Enterprise Evaluation...

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Microsoft SQL Server 2012 Performance Tuning Cookbook
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