Oracle Performance Tuning

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Optimizing Oracle Performance

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Author : Cary Millsap
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2003-09-16

Optimizing Oracle Performance written by Cary Millsap and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-09-16 with Computers categories.

Oracle system performance inefficiencies often go undetected for months or even years--even under intense scrutiny--because traditional Oracle performance analysis methods and tools are fundamentally flawed. They're unreliable and inefficient.Oracle DBAs and developers are all too familiar with the outlay of time and resources, blown budgets, missed deadlines, and marginally effective performance fiddling that is commonplace with traditional methods of Oracle performance tuning. In this crucial book, Cary Millsap, former VP of Oracle's System Performance Group, clearly and concisely explains how to use Oracle's response time statistics to diagnose and repair performance problems. Cary also shows how "queueing theory" can be applied to response time statistics to predict the impact of upgrades and other system changes.Optimizing Oracle Performance eliminates the time-consuming, trial-and-error guesswork inherent in most conventional approaches to tuning. You can determine exactly where a system's performance problem is, and with equal importance, where it is not, in just a few minutes--even if the problem is several years old.Optimizing Oracle Performance cuts a path through the complexity of current tuning methods, and streamlines an approach that focuses on optimization techniques that any DBA can use quickly and successfully to make noticeable--even dramatic--improvements.For example, the one thing database users care most about is response time. Naturally, DBAs focus much of their time and effort towards improving response time. But it is entirely too easy to spend hundreds of hours to improve important system metrics such as hit ratios, average latencies, and wait times, only to find users are unable to perceive the difference. And an expensive hardware upgrade may not help either.It doesn't have to be that way. Technological advances have added impact, efficiency, measurability, predictive capacity, reliability, speed, and practicality to the science of Oracle performance optimization. Optimizing Oracle Performance shows you how to slash the frustration and expense associated with unraveling the true root cause of any type of performance problem, and reliably predict future performance.The price of this essential book will be paid back in hours saved the first time its methods are used.

Sql Tuning

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Author : Dan Tow
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2003-11-19

Sql Tuning written by Dan Tow and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-11-19 with Computers categories.

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

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Author : Mark Gurry
language : en
Publisher: "O'Reilly Media, Inc."
Release Date : 2002-01-01

Oracle Sql Tuning Pocket Reference written by Mark Gurry and has been published by "O'Reilly Media, Inc." this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-01-01 with Computers categories.

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 High Performance Tuning For 9i And 10g

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Author : Gavin JT Powell
language : en
Publisher: Elsevier
Release Date : 2003-12-29

Oracle High Performance Tuning For 9i And 10g written by Gavin JT Powell and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-12-29 with Computers categories.

There are three parts to tuning an Oracle database: data modeling, SQL code tuning and physical database configuration. A data model contains tables and relationships between tables. Tuning a data model involves normalization and de-normalization. Different approaches are required depending on the application, such as OLTP or a Data Warehouse. Inappropriate database design can make SQL code impossible to tune. Poor data modeling can have a most profound effect on database performance since all SQL code is constructed from the data model. Poorly written SQL code is often a culprit of performance problems and is expensive to rectify. However, tuning of SQL code is generally cheaper than changing the data model. SQL code tends to be contained inside independent blocks within applications or stored procedures. Physical database tuning involves hardware resource usage, networking and various other Oracle things such as configuration and file distribution. Physical configuration is often a culprit of poor performance where Oracle is installed with defaults, and never altered by an expert. *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

The Art And Science Of Oracle Performance Tuning

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Author : Christopher Lawson
language : en
Publisher: Springer
Release Date : 2003-07

The Art And Science Of Oracle Performance Tuning written by Christopher Lawson and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-07 with Computers categories.

* Presents an innovative, philosophical approach to Oracle database administration, and shows how to think about the whole complex problem of performance tuning, how to break it down, how to root out the cause of performance bottlenecks. *Covers all practical aspects of Oracle performance tuning. * Filled with hands-on lessons and accounts. * Teaches an innovative and effective "Physician to Magician" approach, showing how to understand the problem, uncover the root cause, and choose and implement the most effective solution.

Oracle Performance Tuning For 10gr2

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Author : Gavin JT Powell
language : en
Publisher: Elsevier
Release Date : 2011-04-08

Oracle Performance Tuning For 10gr2 written by Gavin JT Powell and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-04-08 with Computers categories.

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

Oracle Performance Survival Guide

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Author : Guy Harrison
language : en
Publisher: Prentice Hall
Release Date : 2010

Oracle Performance Survival Guide written by Guy Harrison and has been published by Prentice Hall this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Database management categories.

This complete guide to Oracle 11g Release 2 performance tuning shows how to tune performance efficiently by addressing causes rather than symptoms. It addresses all facets of performance, including application design, SQL tuning, contention management, memory physical IO, and more.

Effective Oracle By Design

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Author : Thomas Kyte
language : en
Publisher: McGraw Hill Professional
Release Date : 2003-09-12

Effective Oracle By Design written by Thomas Kyte and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-09-12 with Computers categories.

Tom Kyte of Oracle Magazine’s “Ask Tom” column has written the definitive guide to designing and building high-performance, scalable Oracle applications. The book covers schema design, SQL and PL/SQL, tables and indexes, and much more. From the exclusive publisher of Oracle Press books, this is a must-have resource for all Oracle developers and DBAs.

Oracle Performance Tuning Tips Techniques

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Author : Richard J. Niemiec
language : en
Publisher: McGraw-Hill Companies
Release Date : 1999-01-01

Oracle Performance Tuning Tips Techniques written by Richard J. Niemiec and has been published by McGraw-Hill Companies this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-01-01 with Computers categories.

Tuning skills are in high demand in Oracle communication, and this guide gives specific examples to build performance tuning skill sets. Database administrators will find helpful hints and useful information to help them get optimal performance from Oracle RDBMS environments.

Oracle Performance Survival Guide

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Author : Guy Harrison
language : en
Publisher: Pearson Education
Release Date : 2009-10-09

Oracle Performance Survival Guide written by Guy Harrison and has been published by Pearson Education this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-10-09 with Computers categories.

Oracle Performance Survival Guide A Systematic Approach to Database Optimization The fast, complete, start-to-finish guide to optimizing Oracle performance Oracle Performance Survival Guide offers a structured, systematic, start-to-finish methodology for optimizing Oracle performance as efficiently as possible. Leading Oracle expert Guy Harrison shows how to maximize your tuning investment by focusing on causes rather than symptoms, and by quickly identifying the areas that deliver the greatest “bang for the buck.” Writing for DBAs and developers with all levels of experience, Harrison covers every area of Oracle performance management, from application design through SQL tuning, contention management through memory and physical IO management. He also presents up-to-the-minute guidance for optimizing the performance of the Oracle 11g Release 2. You’ll start by mastering Oracle structured performance tuning principles and tools, including techniques for tracing and monitoring Oracle execution. Harrison illuminates the interaction between applications and databases, guides you through choosing tuning tools, and introduces upfront design techniques that lead to higher-performance applications. He also presents a collection of downloadable scripts for reporting on all aspects of database performance. Coverage includes • “Tuning by layers,” the most effective, highest-value approach to Oracle performance optimization • Making the most of Oracle’s core tools for tracing, monitoring, and diagnosing performance • Highly efficient database logical and physical design, indexing, transaction design, and API use • SQL and PL/SQL tuning, including the use of parallel SQL techniques • Minimizing contention for locks, latches, shared memory, and other database resources • Optimizing memory and physical disk IO • Tuning Real Application Cluster (RAC) databases guyharrison.net informit.com/ph