Oracle SQL Tuning & CBO Internals PDF Download

Author: Kimberly Floss
Publisher: Rampant TechPress
ISBN: 9780974599335
Category : Computers
Languages : en
Pages : 356

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Book Description
As Oracle professionals are challenged to create SQL statements that will support thousands of concurrent executions with sub-second response time, this book’s timing is critical as tuning Oracle SQL has become the single most important skill of the Oracle professional. While not appropriate for the beginner, this book allows senior Oracle professionals to explore important internal mechanisms within Oracle and the powerful and complex internals of Oracle SQL execution. Topics include the internals of Oracle cost-based SQL optimizer, SQL execution internals within the library cache, Oracle SQL coding and optimization techniques, and Oracle index internals. Also included is a ready-to-use code depot full of working SQL tuning scripts, which allow for quick optimization of the SQL and indexes inside the Oracle database.

Author: Dan Tow
Publisher: "O'Reilly Media, Inc."
ISBN: 059655236X
Category : Computers
Languages : en
Pages : 338

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Book Description
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.

Author: Donald K. Burleson
Publisher: Rampant TechPress
ISBN: 0979795192
Category : Computers
Languages : en
Pages : 1150

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Book Description
For Oracle tuning professionals wishing to add more tools to their Oracle tuning toolbox, this guidebook introduces the various tuning analytical tools and helpful strategies to make the database easier to use. Details describe how to extract information from the database and use it to determine and increase efficiency. It also provides specific steps with detailed information on how to congeal large amounts of database performance information into one pool from which the DBA can carefully choose tuning options based on what is predicted, all to give them the biggest improvement in performance for the least time and money investment. Sample code, sample code results, and guidelines on how to interpret the results help users manipulate code in an effective way. With countless hints, tips, and tools, the guide fully explains how to work with the Oracle system on order to achieve database performance excellence.

Author: John Garmany
Publisher: Rampant TechPress
ISBN: 0972751378
Category : Computers
Languages : en
Pages : 256

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Book Description
Targeted at Oracle professionals who need fast and accurate working examples of complex issues, Oracle In-focus books target specific areas of Oracle technology in a concise manner. Plenty of working code is provided without a lot of theory, allowing database managers to solve their problems quickly without reviewing data that they already know. All code scripts are available for instant download from a companion web site.

Author: Mike Ault
Publisher: Rampant TechPress
ISBN: 9780974599342
Category : Computers
Languages : en
Pages : 244

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Book Description
Covering all aspects of Oracle disk I/O tuning, this book explores disk performance, RAID management, Oracle data file performance, and Oracle data segment internals. Also explored is physical disk I/O, which includes disk device internals, detecting disk bottlenecks, disk organization techniques, and disk striping and disk load balancing. Highlighted are RAID and Oracle performance as well as techniques for effective use of RAID with Oracle. Additionally, Oracle data file internals are considered and how to use multiple data block sizes to detect and repair Oracle data segment bottlenecks and segment waits is described. Oracle segment management is illustrated, and the effective use of Oracle segment partitioning, segment slot internals, and monitoring segment I/O is explained.

Author: Robin Schumacher
Publisher: Rampant TechPress
ISBN: 9780972751346
Category : Computers
Languages : en
Pages : 326

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Book Description
A reference for any Oracle database administrators who must ensure the consistency of data across distributed platforms, this book is for those administrators who recognize the benefits of distributing Oracle data. The intricacies of Oracle multi-master replication are described, and working code examples of complex multi-master replication are provided. Also included is information on Oracle replication tuning and monitoring.

Author: Mike Ault
Publisher: Rampant TechPress
ISBN: 9780974435541
Category : Computers
Languages : en
Pages : 868

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Book Description
Revealing the secrets for quickly implementing and tuning Oracle RAC database systems, this book covers all areas of Oracle Real Application Clusters including Oracle10g new features. Oracle DBAs who are charged with configuring and implementing a RAC clusters database will benefit from this complete guide to the installation as well as configuration and design of Oracle Real Application Clusters. Information is supplied on expert internals of shared disk technology, raw devices and RAID with RAC, the internal concurrency, resource coordination, and the locking mechanism within RAC. Also explained are Transparent Application Failover (TAF) and monitoring and tuning Oracle10g RAC applications.

Author: Janet Burleson
Publisher: Rampant TechPress
ISBN: 9780974599304
Category : Business & Economics
Languages : en
Pages : 310

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Book Description
Offering accumulated observations of interviews with hundreds of job candidates, these books provide useful insights into which characteristics make a good IT professional. These handy guides each have a complete set of job interview questions and provide a practical method for accurately assessing the technical abilities of job candidates. The personality characteristics of successful IT professionals are listed and tips for identifying candidates with the right demeanor are included. Methods for evaluating academic and work histories are described as well.

Author: Janet Burleson
Publisher: Rampant TechPress
ISBN: 9780974599311
Category : Business & Economics
Languages : en
Pages : 372

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Book Description
Provides a set of interview questions and answers to access the technical knowledge and characteristics of candidates applying for a webmaster position.

Author: Tony Hasler
Publisher: Apress
ISBN: 1430259787
Category : Computers
Languages : en
Pages : 599

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Book Description
Expert Oracle SQL: Optimization, Deployment, and Statistics is about optimizing individual SQL statements, especially on production database systems. This Oracle-specific book begins by assuming you have already identified a particular SQL statement and are considering taking steps to improve its performance. The book describes a systematic process by which to diagnose a problem statement, identify a fix, and to implement that fix safely in a production system. You'll learn not only to improve performance when it is too slow, but also to stabilize performance when it is too variable. You'll learn about system statistics and how the Cost-Based Optimizer uses them to determine a suitable execution plan for a given statement. That knowledge provides the foundation from which to identify the root cause, and to stabilize and improve performance. Next after identifying a problem and the underlying root cause is to put in place a solution. Expert Oracle SQL: Optimization, Deployment, and Statistics explains how to apply various remedies such as changing the SQL statement, adding hints, changing the physical design, and more, and how they can be brought to bear on fixing a problem once and for all. Rolling a change out smoothly is an important topic when dealing with tuning and optimization. Expert Oracle SQL: Optimization, Deployment, and Statistics does not let you down in this critical area. The book contains two chapters of good information from an experienced professional on how to safely deploy changes into production so that your systems remaining running and available throughout the deployment process. Describes a systematic approach to tuning Oracle SQL Explains how things are supposed to work, what can go wrong, and how to fix it Takes you through the steps needed to stabilize performance in your production systems