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Oracle DB:Troubleshooting Oracle Performance

《Troubleshooting Oracle Performance》是一本讲解有关oracle DB性能问题分析的书籍,全英文,适合广大爱好DB编程的朋友们。
2010-12-27 上传大小:8.89MB
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Apress - Troubleshooting Oracle Performance, 2nd Edition

Troubleshooting Oracle Performance, 2nd Edition is your systematic guide to diagnosing and resolving performance problems in database-backed applications involving Oracle's database engine. Christian Antognini brings a decade and a half experience to his topic. His first edition is one of the most well-respected books in its field. This second edition has been rigorously updated to cover the latest developments in Oracle Database 11g Release 2 through Oracle Database 12c. What do you do when your database application isn’t running fast enough? You troubleshoot, of course. Finding the slow part of an application is often the easy part of the battle. It’s finding a solution that’s difficult. Troubleshooting Oracle Performance, 2nd Edition helps by providing a systematic approach to addressing the underlying causes of poor database application performance. The author freely shares his experience while explaining the underlying foundations of how SQL statements are executed by the Oracle database engine. You'll be able to draw a solid foundation of theory and shared experience as you face head-on the performance challenges in your daily work. Written for developers by an application developer who has learned by doing Gives a systematic approach to solving database application performance problems Helps you plan for performance as you would for any other application requirement

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Troubleshooting Oracle Performance

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Troubleshooting Oracle Performance 英文

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What do you do when your database application isn’t running fast enough? You troubleshoot, of course. Finding the slow part of an application is often the easy part of the battle. It’s finding a solution that’s difficult. Troubleshooting Oracle Performance helps by providing a systematic approach to addressing the underlying causes of poor database application performance. Written for developers by an application developer who has learned by doing Gives a systematic approach to solving database application performance problems Helps you plan for performance as you would for any other application requirement What you’ll learn See how to treat and plan for performance as a basic application requirement Identify performance problems using a systematic and repeatable approach Configure your query optimizer to meet your application performance goals Optimize table accesses, joins, and physical table layout Read and recognize inefficient SQL execution plans Reduce inefficiencies from too much procedural code

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Part 1 covers some basics that are required to read the rest of the book. Chapter 1, “Performance Problems,” explains not only why it’s essential to approach performance problems at the right moment and in a methodological way, but also why understanding business needs and problems is essential. It also describes the most common database-related design problems that lead to suboptimal performance. Chapter 2, “Key Concepts,” describes the operations carried out by the database engine when parsing and executing SQL statements and how to instrument application code and database calls. It also introduces some important terms that are frequently used in the book. Part 2 explains how to approach performance problems in an environment that uses Oracle Database. Chapter 3, “Analysis of Reproducible Problems,” describes how to identify performance problems with the help of SQL trace and PL/SQL profilers. Chapter 4, “Real-time Analysis of Irreproducible Problems,” describes how to take advantage of information provided by dynamic performance views. Several tools and techniques that can be used with them are also introduced. Chapter 5, “Postmortem Analysis of Irreproducible Problems,” describes how to analyze performance problems that happened in the past with the help of Automatic Workload Repository and Statspack. Part 3 describes the component that is responsible for turning SQL statements into execution plans: the query optimizer. Chapter 6, “Introducing the Query Optimizer,” provides an overview of what the query optimizer does and how it does it. Chapters 7 and 8, “System Statistics” and “Object Statistics,” describe what system statistics and object statistics are, how to gather them, and why they are important for the query optimizer. Chapter 9, “Configuring the Query Optimizer,” covers a configuration road map that you can use to find a good configuration for the query optimizer. Chapter 10, “Execution Plans,” describes in detail how to obtain, interpret, and judge the efficiency of execution plans.

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