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

Introduction


Database Engine Tuning Advisor (DTA) suggests ways to tune the database by analyzing the Workload provided. DTA helps in creating an efficient index, an indexed view (if it's supported by the SQL Server Edition you are using), statistics, and partitions. DTA can give efficient suggestions only if you have created proper workload with sufficient data. For further details of creating workload, refer Creating a trace or workload recipe of Chapter 1, Mastering SQL Trace Using Profiler.

Studying an Estimated execution plan (covered in Chapter 5, Monitoring with Execution Plans) of query from Query Editor to find out the bottleneck and resolve it needs knowledge of the database structure as well as good command over performance tuning, whereas DTA offers a very simple solution to this. Just collect the proper workload, give it to DTA and it will analyze that Workload for you and suggests you the ways for tuning.

Sometimes it happens that we tune one query by creating/removing an index...