Oracle SQL Tuning with Oracle SQLTXPLAIN
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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.
- 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
Stelios Charalambides has more than 20 years experience working with Oracle databases. He is OCP certified and has worked as a senior Consultant and database administrator (DBA) on both sides of the Atlantic. His experience includes dealing with all aspects of system design, implementation and post production support, solving practical problems in a wide variety of environments. He works as an Exadata Oracle Support Engineer developing time-critical solutions for tier-one customers with high profile performance problems.
| Autor: | Stelios Charalambides |
|---|---|
| EAN: | 9781484224366 |
| eBook Format: | |
| Sprache: | Englisch |
| Produktart: | eBook |
| Veröffentlichungsdatum: | 05.04.2017 |
| Untertitel: | Oracle Database 12c Edition |
| Kategorie: | |
| Schlagworte: | AWR Automated Workload Repository Data Guard Exadata Execution Plan Health Check Histogram Oracle AWR SQL SQL Monitor SQL Profile SQLT SQLTEXPLAIN |
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