Oracle Performance Tuning for 10gR2

ISBN-13: 9781555583453 / Angielski / Miękka / 2006 / 904 str.

Gavin Powell

Opis

Tuning of SQL code is generally cheaper than changing the data model. Physical and configuration tuning involves a search for bottlenecks that often points to SQL code or data model issues. Building an appropriate data model and writing properly performing SQL code can give 100%+ performance improvement. Physical and configuration tuning often gives at most a 25% performance increase.

Gavin Powell shows that the central theme of Oracle10gR2 Performance Tuning is four-fold: denormalize data models to fit applications; tune SQL code according to both the data model and the application in relation to scalability; create a well-proportioned physical architecture at the time of initial Oracle installation; and most important, mix skill sets to obtain the best results.

* Fully updated for version 10gR2 and provides all necessary transition material from version 9i
* Includes all three aspects of Oracle database tuning: data model tuning, SQL & PL/SQL code tuning, physical plus configuration tuning
* Contains experienced guidance and real-world examples using large datasets Emphasizes development as opposed to operating system perspective

Spis treści

Part I. Data Model Tuning 1. The Relational Database Model 2. Tuning the Relational Database Model 3. Different Forms of the Relational Database Model 4. A Brief History of Data Modeling Part II. SQL Code Tuning 5. What is SQL? 6. Basic Concepts of Efficient SQL 7. Advanced Concepts of Efficient SQL 8. Common Sense Indexing  9. Oracle SQL Optimization and Statistics 10. How Oracle SQL Optimization Works 11. Overriding Optimizer Behavior Using Hints 12. How to Find Problem Queries 13. Automated SQL Tuning Part III. Physical and Configuration Tuning 14. Installing Oracle and Creating a Database 15. Tuning Oracle Database File Structures 16. Object Tuning 17. Low Level Physical Tuning 18. Hardware Resource Usage Tuning 19. Tuning Network Usage 20. Oracle Partitioning and Parallelism 21. Ratios: Possible Symptoms of Problems 22. Wait Events 23. Latches 24. Tools and Utilities Part IV. Tuning Everything at Once 25. The Wait Event Interface 26. The Database Control 27. Tuning With STATSPACK

Appendices A. Sample Databases  B. Sample Scripts (script changes) C. Sources of Information (accreditations) D. SQL Tuning in Oracle Enterprise Manager