SQL Tuning

You can eliminate the bottleneck (for example, add CPUs) if you are not already at the system limit, or you can tune the application, including, especially, its SQL. If you cannot do either, then the system will process less load than ...

SQL Tuning

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. SQL Tuning provides an essential next step for SQL developers and database administrators who want to extend their SQL tuning expertise and get the most from their database applications.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. SQL Tuning provides answers to these questions and addresses a third issue that's even more important: how to find the optimal execution plan for the query to use.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. SQL Tuning concludes by addressing special concerns and unique solutions to "unsolvable problems."Whether you are a programmer who develops SQL-based applications or a database administrator or other who troubleshoots poorly tuned applications, SQL Tuning will arm you with a reliable and deterministic method for tuning your SQL queries to gain optimal performance.

More Books:

SQL Tuning
Language: en
Pages: 338
Authors: Dan Tow
Categories: Computers
Type: BOOK - Published: 2003-11-19 - Publisher: "O'Reilly Media, Inc."

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. SQL Tuning provides an essential next step for SQL developers and database administrators who want to extend their SQL tuning expertise and get
Oracle PL/SQL Tuning
Language: en
Pages: 301
Authors: Timothy S. Hall, Don Burleson
Categories: Computers
Type: BOOK - Published: 2006 - Publisher: Rampant TechPress

Provides information on ways to achieve high performance from PL/SQL.
Oracle SQL Tuning with Oracle SQLTXPLAIN
Language: en
Pages: 408
Authors: Stelios Charalambides
Categories: Computers
Type: BOOK - Published: 2017-04-05 - Publisher: Apress

Learn through this practical guide to SQL tuning how Oracle's own experts do it, using a freely downloadable tool called SQLTXPLAIN. This new edition has been expanded to include AWR, Oracle 12c Statistics, interpretation of SQL Monitor reports, Parallel execution, and Exadata-related features. Reading this book and using SQL helps
Oracle SQL Tuning Pocket Reference
Language: en
Pages: 110
Authors: Mark Gurry
Categories: Computers
Type: BOOK - Published: 2002-01-01 - Publisher: "O'Reilly Media, Inc."

One of the most important challenges faced by Oracle database administrators and Oracle developers is the need to tune SQL statements so that they execute efficiently. Poorly tuned SQL statements are one of the leading causes of substandard database performance and poor response time. SQL statements that perform poorly result
Formal SQL Tuning for Oracle Databases
Language: en
Pages: 109
Authors: Leonid Nossov, Hanno Ernst, Victor Chupis
Categories: Computers
Type: BOOK - Published: 2016-09-16 - Publisher: Springer

The target of SQL tuning is the improvement of the existing execution plan. The authors discuss the removal of brakes in the execution plan. Such "brakes" or bottlenecks can be recognized by a formal analysis of the execution plan. For this purpose no data model knowledge is needed. This is