Formal Sql Tuning For Oracle Databases

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Formal SQL Tuning for Oracle Databases

Author : Leonid Nossov,Hanno Ernst,Victor Chupis
Publisher : Springer
Page : 109 pages
File Size : 51,8 Mb
Release : 2016-09-16
Category : Computers
ISBN : 9783662504178

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Formal SQL Tuning for Oracle Databases by Leonid Nossov,Hanno Ernst,Victor Chupis Pdf

The target of SQL tuning is the improvement of the existing execution plan. The authors discuss the removal of brakes in the execution plan. Such "brakes" or bottlenecks can be recognized by a formal analysis of the execution plan. For this purpose no data model knowledge is needed. This is especially beneficial for database administrators because they are usually not or insufficiently familiar with the data model. The book presents numerous practical examples with this method.

Oracle SQL Tuning Pocket Reference

Author : Mark Gurry
Publisher : "O'Reilly Media, Inc."
Page : 113 pages
File Size : 45,7 Mb
Release : 2002-01-01
Category : Computers
ISBN : 9780596552138

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Oracle SQL Tuning Pocket Reference by Mark Gurry Pdf

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 SQL Tuning

Author : Donald K. Burleson
Publisher : McGraw-Hill Education
Page : 608 pages
File Size : 48,9 Mb
Release : 2001-08-17
Category : Computers
ISBN : 0072190582

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Oracle High-Performance SQL Tuning by Donald K. Burleson Pdf

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. From the official Oracle Press comes a comprehensive guide to tuning SQL statements for optimal execution This expert resource explains how to view the internal execution plan of any SQL statement and change it to improve the performance of the statement. You'll get details on Oracle's optimizer modes, SQL extensions, the STATSPACK utility, and a wealth of methods for tuning Oracle SQL statements.

Oracle Performance Survival Guide

Author : Guy Harrison
Publisher : Pearson Education
Page : 933 pages
File Size : 43,9 Mb
Release : 2009-10-09
Category : Computers
ISBN : 9780137000500

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Oracle Performance Survival Guide by Guy Harrison Pdf

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

Oracle High Performance Tuning for 9i and 10g

Author : Gavin JT Powell
Publisher : Elsevier
Page : 544 pages
File Size : 52,7 Mb
Release : 2003-12-29
Category : Computers
ISBN : 9780080513294

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Oracle High Performance Tuning for 9i and 10g by Gavin JT Powell Pdf

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

Oracle SQL High-performance Tuning

Author : Guy Harrison
Publisher : Unknown
Page : 516 pages
File Size : 51,9 Mb
Release : 1997
Category : Computers
ISBN : 0136142311

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Oracle SQL High-performance Tuning by Guy Harrison Pdf

This is a comprehensive quide to writing SQL code that's optimized for performance. It includes a unique set of software tools on CD-ROM for benchmarking SQL performance.

Oracle Database 12c Performance Tuning Recipes

Author : Sam Alapati,Darl Kuhn,Bill Padfield
Publisher : Apress
Page : 621 pages
File Size : 54,6 Mb
Release : 2014-01-21
Category : Computers
ISBN : 9781430261889

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Oracle Database 12c Performance Tuning Recipes by Sam Alapati,Darl Kuhn,Bill Padfield Pdf

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

Oracle Performance Tuning for 10gR2

Author : Gavin JT Powell
Publisher : Elsevier
Page : 960 pages
File Size : 51,7 Mb
Release : 2011-04-08
Category : Computers
ISBN : 0080492029

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Oracle Performance Tuning for 10gR2 by Gavin JT Powell Pdf

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

SQL Tuning

Author : Dan Tow
Publisher : "O'Reilly Media, Inc."
Page : 338 pages
File Size : 47,5 Mb
Release : 2003-11-19
Category : Computers
ISBN : 9780596552367

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SQL Tuning by Dan Tow Pdf

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 Database 11g Performance Tuning Recipes

Author : Sam Alapati,Darl Kuhn,Bill Padfield
Publisher : Apress
Page : 584 pages
File Size : 47,9 Mb
Release : 2011-10-18
Category : Computers
ISBN : 9781430236634

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Oracle Database 11g Performance Tuning Recipes by Sam Alapati,Darl Kuhn,Bill Padfield Pdf

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 11g Performance Tuning Recipes delivers. Oracle Database 11g 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 Written by a team of experienced database administrators successful in their careers

Oracle Tuning

Author : Alexey B. Danchenkov
Publisher : Rampant Techpress
Page : 960 pages
File Size : 50,9 Mb
Release : 2006-02-01
Category : Computers
ISBN : 9780974448626

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Oracle Tuning by Alexey B. Danchenkov Pdf

Oracle 10g has become the most complex database ever created and Oracle tuning has become increasingly complex. This book provides a complete step-by-step approach for holistic Oracle tuning and it is the accumulated knowledge from tuning thousands of Oracle databases. Incorporating the principles of artificial intelligence, Oracle10g has developed a sophisticated mechanism for capturing and tracking database performance over time periods. This new complexity has introduced dozens of new v$ and DBA views, plus dozens of Automatic Workload Repository (AWR) tables. The AWR and its interaction with the Automatic Database Diagnostic Monitor (ADDM) is a revolution in database tuning. By understanding the internal workings of the AWR tables, the senior DBA can develop time-series tuning models to predict upcoming outages and dynamically change the instance to accommodate the impending resource changes. This is not a book for beginners. Targeted at the senior Oracle DBA, this book dives deep into the internals of the v$ views, the AWR table structures and the new DBA history views. Packed with ready-to-run scripts, you can quickly monitor and identify the most challenging performance issues.

Oracle Data Warehouse Tuning for 10g

Author : Gavin JT Powell
Publisher : Elsevier
Page : 504 pages
File Size : 50,7 Mb
Release : 2011-04-08
Category : Computers
ISBN : 008045917X

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Oracle Data Warehouse Tuning for 10g by Gavin JT Powell Pdf

“This book should satisfy those who want a different perspective than the official Oracle documentation. It will cover all important aspects of a data warehouse while giving the necessary examples to make the reading a lively experience. - Tim Donar, Author and Systems Architect for Enterprise Data Warehouses Tuning a data warehouse database focuses on large transactions, mostly requiring what is known as throughput. Throughput is the passing of large amounts of information through a server, network and Internet environment, backwards and forwards, constantly! The ultimate objective of a data warehouse is the production of meaningful and useful reporting, from historical and archived data. The trick is to make the reports print within an acceptable time frame. A data model contains tables and relationships between tables. Tuning a data model involves Normalization and Denormalization. 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. * Takes users beyond basics to critical issues in running most efficient data warehouse applications * Illustrates how to keep data going in and out in the most productive way possible * Focus is placed on Data Warehouse performance tuning

Oracle PL/SQL Tuning

Author : Timothy S. Hall
Publisher : Rampant TechPress
Page : 320 pages
File Size : 50,5 Mb
Release : 2006
Category : Computer programming
ISBN : 9780976157397

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Oracle PL/SQL Tuning by Timothy S. Hall Pdf

Oracle experts know that PL/SQL tuning makes a huge difference in execution speed. As one of the world's most popular and respected experts, Dr. Tim Hall shares his secrets for tuning Oracle PL/SQL. This indispensable book shows how to hypercharge Oracle applications gaining as much as 30x improvement in execution speed using under-documented code tricks. Packed with working examples, learn how to re-write SQL into PL./SQL and how to use advanced Oracle bulk array processing techniques to achieve super high performance. You can save your company millions of dollars in hardware costs by making your applications run at peak efficiency. Targeted at the Senior Oracle DBA and developer, this advanced book illustrates powerful techniques that can make PL/SQL run faster than ever before. This book is not for beginners and should only be purchased by seasoned Oracle professionals who must turbocharge their applications. Your time savings from a single script is worth the price of this great book.

Advanced Oracle SQL Tuning

Author : Donald K. Burleson
Publisher : Rampant Techpress
Page : 782 pages
File Size : 42,5 Mb
Release : 2014-03
Category : Computers
ISBN : 0991638603

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Advanced Oracle SQL Tuning by Donald K. Burleson Pdf

It's impossible to tune an Oracle database without understanding SQL tuning. Oracle is a SQL processing engine and the execution speed of any SQL query is influenced by many factors, both internal and external. As a declarative data access method, SQL relies on the Oracle cost-based optimizer to always choose the "best" execution plan for every SQL query. However, Oracle's SQL is among the most flexible and robust in the world, and along with this great power comes complexity. Tuning Oracle SQL is the single most important skill of any Oracle professional, and Oracle professionals are challenged to create SQL statements that will support thousands of concurrent executions with sub-second response time. "Advanced Oracle SQL Tuning" is a pragmatic treatment of Oracle SQL tuning, short on theory and big on real-world techniques and tips. This book is the culmination of the author's 25 years of full-time DBA experience and he shares expert tips and secrets for hyper charging SQL execution speed. This book covers advanced topics and it is not appropriate for beginners, dilettantes or neophytes.

Oracle SQL Tuning with Oracle SQLTXPLAIN

Author : Stelios Charalambides
Publisher : Apress
Page : 332 pages
File Size : 54,6 Mb
Release : 2013-04-13
Category : Computers
ISBN : 9781430248101

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Oracle SQL Tuning with Oracle SQLTXPLAIN by Stelios Charalambides Pdf

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.