View Larger Image	Robin Schumacher Rampant TechPress, Paperback, Bk&CD edition, Published August 2003, 254 pages, ISBN 0972751343
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• Databases : Oracle
• Databases : SQL

• Rampant TechPress

If you're a DBA who's looking for real world Oracle tuning techniques, Oracle scripts, and advice on how to get to the heart of critical Oracle performance problems, then you've come to the right place.  Written by one the world's top DBAs and Oracle internals experts, Robin Schumacher focuses his incredible knowledge of the Oracle data dictionary into a superb book that show how to quickly troubleshoot and correct Oracle performance problems. 

As a Vice President at Embarcadero Technologies, Robin Schumacher has written the internals for some of the world's most powerful Oracle performance software and now he shows you how to use the most recent advancements in Oracle8i and 9i to make your Oracle database run as fast as possible.

  Key Features:

Provides a winning performance methodology for use in analyzing any Oracle database

Demonstrates how to properly use ratio-based and bottleneck analysis

Offers insight into how to design a fast-running database from the ground up

Supplies methods for making storage and reorganization problems a thing of the past

Presents new techniques for monitoring and optimizing memory usage

Shows how to quickly pinpoint and resolve I/O hotspots at the database, storage and object level

Presents improved methods for uncovering session-related bottlenecks

Provides new tips and techniques for locating and fixing problem SQL

Comes with online code depot with dozens of new performance and monitoring scripts

Table of Contents

• Modeling Peak Efficiency
• Gauging Availability with v$ views
• Gauging Transaction Speed with v$sqlarea
• Availability Impact
• Speed Impact

• The Impact of Solid Database Design with v$bh analysis
• The Number One Contributor to Database Performance
• The Link Between Design and Performance Tuning with materialized views
• Boosting Database Performance Through Design
• How to Pinpoint Database Design Errors with v$sql analysis

• The Contribution of Storage to Performance with RAID
• Storage Design Considerations
• Smart Ways to Avoid Database Downtime
• Critical Storage Headaches to Avoid
• Removing Storage-related Performance Vampires

• When Does Less Become More?
• New Performance-Boosting Memory Options
• How to Keep Data Where You Want It
• How to Keep Code Where You Want It
• Uncovering Memory Hogs

About the Author

Robin Schumacher is vice-president of Product Management for Embarcadero Technologies, Inc., a leading supplier of database software tools.  Robin has over fourteen years experience in database administration, development, monitoring, and tuning with Oracle, DB2, Teradata, Sybase, and Microsoft SQL Server. 

He has authored countless performance-related articles for many database-centric magazines as well as serving as a database software reviewer and feature writer for the likes of Intelligent Enterprise, eWeek, DM Review, and others. 

Oct 25, 2003     Christopher W. Lawson from Dublin, CA
POWERFUL WAYS TO IMPROVE PERFORMANCE
This book is another in the series of technical volumes published by "Rampant Techpress," published by Don Burleson. The purpose of this book by Robin Schumacher is to suggest and illustrate a robust, comprehensive performance tuning methodology.

With this methodology in hand, the author then provide examples and scripts to show how this works in practice. Robin points out the importance of proactively monitoring a database, and modeling database performance. He shows the difference between two key ways to approach performance tuning: Ratio based versus Bottleneck Analysis. Each have their place, he shows.

For instance, he notes that Ratios are good for getting a quick "bird's eye" view of the performance. He correctly cautions the reader, in the section entitled "The Dangers of Blanket Ratios," about overly simplistic reliance on simple ratios.

I found the discussion of the V$Sql_Plan view especially helpful. I admit that I have not used this in my own performance troubleshooting. After reading this book, I see that I have really missed out on a powerful tactic! Robin shows how to use this view to best effect. He includes numerous scripts, which are available from the Rampant website (I successfully downloaded all the scripts without a hitch).

For example, in the script "9iCartSql" Robin shows how easy it is to find completed queries that used Cartesian Products as part of the execution plan. He points out that this could be an indication of improper join syntax. In another script, he shows how to get a list of the exact SQL that caused scans of large tables. In another example, he introduces the new view V$Sql_Plan Statistics, and illustrates a way to obtain the exact statistics for each step in the execution plan for all SQL executed on the instance.

Do you get the idea? A lot of good ideas, along with the exact scripts to use. All in all, an impressive volume to add to your DBA "Tool Kit." I found the discussions clear and to the point, and intend to use many of the the numerous, practical scripts provided with this book.

As Mr Schumacher points out in Chapter 1, "The IT consultants who make the really big money are the ones who can take a lethargic system and quickly turn it into one that runs as fast as greased lightning." Thank you, Robin, for heading us in the right direction!

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