SQL TUNING BY DAN TOW PDF

There are two basic issues to focus on when tuning SQL: how to find and interpret the execution plan of an SQL statement and how to change SQL to get a specific alternate execution plan. Author Dan Tow outlines a timesaving method he's developed for finding the optimum execution plan--rapidly and systematically--regardless of the complexity of the SQL or the database platform being used. You'll learn how to understand and control SQL execution plans and how to diagram SQL queries to deduce the best execution plan for a query. Key chapters in the book include exercises to reinforce the concepts you've learned.

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There are two basic issues to focus on when tuning SQL: how to find and interpret the execution plan of an SQL statement and how to change SQL to get a specific alternate execution plan. Author Dan Tow outlines a timesaving method he's developed for finding the optimum execution plan--rapidly and systematically--regardless of the complexity of the SQL or the database platform being used. You'll learn how to understand and control SQL execution plans and how to diagram SQL queries to deduce the best execution plan for a query.

Key chapters in the book include exercises to reinforce the concepts you've learned. His experience solving Oracle-related performance problems goes all the way back to his hire by Oracle Corporation. During most of his tenure at Oracle, Dan focused on the performance of Oracle Applications, managing the performance group for that division.

In this role, he found a fertile testing ground for his SQL tuning method applied to the huge set of complex SQL included in those applications, including both online SQL and diverse batch processes. In , Dan started his own business, SingingSQL, through which he offers diverse database-related tuning services, including SQL tuning and systematically analyzing load to learn which SQL should be tuned. He has introduced his SQL tuning method to over 1, people in short lectures, and now offers in-depth courses in the material, using this book as textbook.

Dan has a Ph. He lives in Palo Alto, California, and can be reached at dantow singingsql. SQL tuning. Dan Tow. A poorly performing database application not only costs users time, but also has an impact on other applications running on the same computer or the same network. DataAccess Basics. Viewing and Interpreting Execution Plans.

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SQL Tuning

The Singing SQL approach:. Singing SQL News. Prime offerings: Performance and tuning classes — I teach what I know, with focused classes at your site — want to do it yourself? If you want to learn SQL tuning from the guy who wrote the book, I offer a successful class based on the book, offered at reasonable rates onsite at your company!

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SQL Tuning: Generating Optimal Execution Plans

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