Oracle SQL Tuning with Oracle SQLTXPLAIN

2013-04-13 Computers

Author : Stelios Charalambides
Release : 2013-04-13
Genre : Computers
Kind : eBook
Book Rating : 106/5 ( reviews)

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Book Synopsis Oracle SQL Tuning with Oracle SQLTXPLAIN by : Stelios Charalambides

Download or read book Oracle SQL Tuning with Oracle SQLTXPLAIN written by Stelios Charalambides. This book was released on 2013-04-13. Available in PDF, EPUB and Kindle. Book excerpt: Oracle SQL Tuning with SQLTXPLAIN is a practical guide to SQL tuning the way Oracle's own experts do it, using a freely downloadable tool called SQLTXPLAIN. Using this simple tool you'll learn how to tune even the most complex SQL, and you'll learn to do it quickly, without the huge learning curve usually associated with tuning as a whole. Firmly based in real world problems, this book helps you reclaim system resources and avoid the most common bottleneck in overall performance, badly tuned SQL. You'll learn how the optimizer works, how to take advantage of its latest features, and when it's better to turn them off. Quickly tune any SQL statement no matter how complex. Build and tune test cases without affecting production. Use the latest tuning features with confidence.

Oracle SQL Tuning with Oracle SQLTXPLAIN

2017-04-05 Computers

Author : Stelios Charalambides
Release : 2017-04-05
Genre : Computers
Kind : eBook
Book Rating : 361/5 ( reviews)

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Book Synopsis Oracle SQL Tuning with Oracle SQLTXPLAIN by : Stelios Charalambides

Download or read book Oracle SQL Tuning with Oracle SQLTXPLAIN written by Stelios Charalambides. This book was released on 2017-04-05. Available in PDF, EPUB and Kindle. Book excerpt: 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 you learn to tune even the most complex SQL, and you'll learn to do it quickly, without the huge learning curve usually associated with tuning as a whole. Firmly based in real-world problems, this book helps you reclaim system resources and avoid the most common bottleneck in overall performance, badly tuned SQL. You'll learn how the optimizer works, how to take advantage of its latest features, and when it's better to turn them off. Best of all, the book is updated to cover the very latest feature set in Oracle Database 12c. Covers AWR report integration Helps with SQL Monitor Report Interpretation Provides a reliable method that is repeatable Shows the very latest tuning features in Oracle Database 12c Enables the building of test cases without affecting production What You'll Learn Identify how and why complex SQL has gone wrong Correctly interpret AWR reports generated via SQLTXPLAIN Collect the best statistics for your environment Know when to invoke built-in tuning facilities Recognize when tuning is not the solution Spot the steps in a SQL statement's execution plan that are critical to performance of that statement Modify your SQL to solve performance problems and increase the speed and throughput of production database systems Who This Book Is For divAnyone who deals with SQL and SQL tuning. Both developers and DBAs will benefit from learning how to use the SQLTXPLAIN tool, and from the problem solving methodology in this book.

SQL Tuning

2003-11-19 Computers

Author : Dan Tow
Release : 2003-11-19
Genre : Computers
Kind : eBook
Book Rating : 36X/5 ( reviews)

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Book Synopsis SQL Tuning by : Dan Tow

Download or read book SQL Tuning written by Dan Tow. This book was released on 2003-11-19. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Oracle SQL Tuning Pocket Reference

2002-01-01 Computers

Author : Mark Gurry
Release : 2002-01-01
Genre : Computers
Kind : eBook
Book Rating : 130/5 ( reviews)

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Book Synopsis Oracle SQL Tuning Pocket Reference by : Mark Gurry

Download or read book Oracle SQL Tuning Pocket Reference written by Mark Gurry. This book was released on 2002-01-01. Available in PDF, EPUB and Kindle. Book excerpt: 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 in frustration for users, and can even prevent a company from serving its customers in a timely manner. In this book, Mark Gurry shares his in-depth knowledge of Oracle's SQL statement optimizers. Mark's knowledge is the result of many hard-fought tuning battles during his many years of providing Oracle tuning services to clients. Mark provides insights into the workings of the rule-based optimizer that go well beyond what the rules tell you. Mark also provides solutions to many common problems that occur with both the rule-based and cost-based optimizers. In addition to the specific problem/solution scenarios for the optimizers, Mark provides a number of handy SQL tuning tips. He discusses the various optimizer hints, telling you when they can be used to good effect. Finally, Mark discusses the use of the DBMS_STATS package to manage database statistics, and the use of outlines to specify execution plans for SQL statements in third-party applications that you can't otherwise modify.

Oracle Database 12c Performance Tuning Recipes

2014-01-21 Computers

Author : Sam Alapati
Release : 2014-01-21
Genre : Computers
Kind : eBook
Book Rating : 889/5 ( reviews)

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Book Synopsis Oracle Database 12c Performance Tuning Recipes by : Sam Alapati

Download or read book Oracle Database 12c Performance Tuning Recipes written by Sam Alapati. This book was released on 2014-01-21. Available in PDF, EPUB and Kindle. Book excerpt: Performance problems are rarely "problems" per se. They are more often "crises" during which you’re pressured for results by a manager standing outside your cubicle while your phone rings with queries from the help desk. You won’t have the time for a leisurely perusal of the manuals, nor to lean back and read a book on theory. What you need in that situation is a book of solutions, and solutions are precisely what Oracle Database 12c Performance Tuning Recipes delivers. Oracle Database 12c Performance Tuning Recipes is a ready reference for database administrators in need of immediate help with performance issues relating to Oracle Database. The book takes an example-based approach, wherein each chapter covers a specific problem domain. Within each chapter are "recipes," showing by example how to perform common tasks in that chapter’s domain. Solutions in the recipes are backed by clear explanations of background and theory from the author team. Whatever the task, if it’s performance-related, you’ll probably find a recipe and a solution in this book. Provides proven solutions to real-life Oracle performance problems Offers relevant background and theory to support each solution Gets straight to the point for when you're under pressure for results

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