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Microsoft SQL Server 2012 Performance Tuning Cookbook

You're reading from   Microsoft SQL Server 2012 Performance Tuning Cookbook With this book you'll learn all you need to know about performance monitoring, tuning, and management for SQL Server 2012. Includes a host of recipes and screenshots to help you say goodbye to slow running applications.

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Product type Paperback
Published in Jul 2012
Publisher Packt
ISBN-13 9781849685740
Length 478 pages
Edition 1st Edition
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Toc

Table of Contents (28) Chapters Close

Microsoft SQL Server 2012 Performance Tuning Cookbook
Credits
About the Authors
Acknowledgement
Acknowledgement
About the Reviewers
www.PacktPub.com
1. Preface
1. Mastering SQL Trace Using Profiler FREE CHAPTER 2. Tuning with Database Engine Tuning Advisor 3. System Statistical Functions, Stored Procedures, and the DBCC SQLPERF Command 4. Resource Monitor and Performance Monitor 5. Monitoring with Execution Plans 6. Tuning with Execution Plans 7. Dynamic Management Views and Dynamic Management Functions 8. SQL Server Cache and Stored Procedure Recompilations 9. Implementing Indexes 10. Maintaining Indexes 11. Points to Consider While Writing Queries 12. Statistics in SQL Server 13. Table and Index Partitioning 14. Implementing Physical Database Structure 15. Advanced Query Tuning Hints and Plan Guides 16. Dealing with Locking, Blocking, and Deadlocking 17. Configuring SQL Server for Optimization 18. Policy-based Management 19. Resource Management with Resource Governor Index

How to find missing indexes


By now, we hope that you have understood the requirement of the index in performance. While developing a database table, initially it is not always possible for us to predict the right column as an index. So, as per our prediction, we used to generate an index that might be helpful; sometimes it would not even be used, and sometimes, we would need other indexes as well, apart from the initial index we had created. So, now the question arises as to how to find the indexes that are not even generated. How can we predict which indexes are missing and which we need to create?

Generally, whenever any query gets executed, SQL Server query optimizer finds the best index for the execution, and if it doesn't find it, the optimizer generates a suboptimal plan for your query, returns the result set, and stores that information about missing index in the DMVs.

As soon as SQL Server services restart or the whole server restarts, all information stored for this missing index...

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