Cost Based Oracle Fundamentals

Author : Jonathan Lewis
Publisher : Apress
ISBN 13 : 1590596366
Total Pages : 525 pages
Book Rating : 4.64/5 ( download)

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Download or read book Cost-Based Oracle Fundamentals written by Jonathan Lewis and published by Apress. This book was released on 2005-11-02 with total page 525 pages. Available in PDF, EPUB and Kindle. Book excerpt: The question, "Why isn’t Oracle using my index?" must be one of the most popular (or perhaps unpopular) questions ever asked on the Oracle help forums. You’ve picked exactly the right columns, you’ve got them in the ideal order, you’ve computed statistics, you’ve checked for null columns—and the optimizer flatly refuses to use your index unless you hint it. What could possibly be going wrong? If you’ve suffered the frustration of watching the optimizer do something completely bizarre when the best execution plan is totally obvious, or spent hours or days trying to make the optimizer do what you want it to do, then this is the book you need. You’ll come to know how the optimizer thinks, understand why it makes mistakes, and recognize the data patterns that make it go awry. With this information at your fingertips, you will save an enormous amount of time on designing and trouble-shooting your SQL. The cost-based optimizer is simply a piece of code that contains a model of how Oracle databases work. By applying this model to the statistics about your data, the optimizer tries to efficiently convert your query into an executable plan. Unfortunately, the model can't be perfect, your statistics can't be perfect, and the resulting execution plan may be far from perfect. In Cost-Based Oracle Fundamentals, the first book in a series of three, Jonathan Lewis—one of the foremost authorities in this field—describes the most commonly used parts of the model, what the optimizer does with your statistics, and why things go wrong. With this information, you’ll be in a position to fix entire problem areas, not just single SQL statements, by adjusting the model or creating more truthful statistics.

Author : Jonathan Lewis
Publisher : Apress
ISBN 13 : 1430200871
Total Pages : 521 pages
Book Rating : 4.71/5 ( download)

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Download or read book Cost-Based Oracle Fundamentals written by Jonathan Lewis and published by Apress. This book was released on 2006-11-10 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jonathan Lewis is one of the world's foremost authorities in this field (he is frequently quoted and reference by other leading experts, such as Tom Kyte – see for example http://asktom.oracle.com/pls/ask/download_file?p_file=3067171813508366601 Book will be strongly co-promoted with Tom Kyte's Expert Oracle Database Architecture (1-59059-530-0) Highlights traps for those migrating from Oracle 8i to 9i to 10g, potentially averting often disastrous performance issues and downtime (=lost revenue) The first comprehensive book written to investigate, describe, and demonstrate the methods used by the Cost Based Optimizer Jonathan is one of very few Oracle authors to maintain online enhancements, errata and addenda pages, so the reader will be supported long after the book is published

Author : Jonathan Lewis
Publisher : Apress
ISBN 13 : 1430239557
Total Pages : 276 pages
Book Rating : 4.50/5 ( download)

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Download or read book Oracle Core: Essential Internals for DBAs and Developers written by Jonathan Lewis and published by Apress. This book was released on 2012-01-29 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oracle Core: Essential Internals for DBAs and Developers by Jonathan Lewis provides just the essential information about Oracle Database internals that every database administrator needs for troubleshooting—no more, no less. Oracle Database seems complex on the surface. However, its extensive feature set is really built upon upon a core infrastructure resulting from sound architectural decisions made very early on that have stood the test of time. This core infrastructure manages transactions and the ability to commit and roll back changes, protects the integrity of the database, enables backup and recovery, and allows for scalability to thousands of users all accessing the same data. Most performance, backup, and recovery problems that database administrators face on a daily basis can easily be identified through understanding the essential core of Oracle Database architecture that Lewis describes in this book. Provides proven content from a world-renowned performance and troubleshooting expert Emphasizes the significance of internals knowledge to rapid identification of database performance problems Covers the core essentials and does not waste your time with esoterica

Author : Bill Calkins
Publisher : Pearson Education
ISBN 13 : 0133007103
Total Pages : 720 pages
Book Rating : 4.07/5 ( download)

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Download or read book Oracle Solaris 11 System Administration written by Bill Calkins and published by Pearson Education. This book was released on 2013 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oracle® Solaris 11 System Administration covers every skill required to effectively install and administer the Oracle® Solaris 11.1 operating system in production environments. It features dozens of step-bystep “learn by example” procedures, demonstrating how to apply complex solutions in real-world data center environments. Author Bill Calkins has administered and taught Oracle Solaris and its predecessors for more than twenty years. He also helped develop the newest Oracle Certified Associate (OCA) and Oracle Certified Professional (OCP) exams, which raise the bar for Solaris certification. This guide covers every new 1Z0-821 exam topic in detail and also covers many 1Z0-822 exam topics. Calkins also reviews the changes that system administrators will face when upgrading to Solaris 11.1 and presents new ways to perform familiar tasks on both SPARC and x86 hardware. You'll learn how to Install the Solaris 11 Operating Environment with Live Media or Text Interactive installers Install, manage, and update software with the Image Packaging System and IPS repositories Understand, customize, and troubleshoot SPARC and x86 boot processes from system power-up to loading the OS (including coverage of ILOM, OpenBoot, and GRUB 2) Administer and create services through the service management facility (SMF) Configure system messaging using SMF notifications, syslog and rsyslog Configure and administer ZFS storage pools, including ZFS on the boot drive, local disks, LUNs, and a SAN Configure and manage ZFS file systems: encryption, redundancy, snapshots, clones, network sharing, monitoring, device replacement, and legacy UFS migration Create, migrate, contain, and administer zones, including solaris10 branded and immutable zones Use RBAC to create custom rights profiles and grant special privileges Manage and monitor system process scheduler (including FSS process schedulers and proc tools) Configure Solaris networking and network services, including Reactive and Fixed Network Configurations, VNICs, and Virtual Networking A companion website (unixed.com/solaris11book.html) includes new 1Z0-821 and 1Z0-822 study strategies and self-assessment exams.

Author : Steven Feuerstein
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 9780596003814
Total Pages : 1028 pages
Book Rating : 4.11/5 ( download)

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Download or read book Oracle PL/SQL Programming written by Steven Feuerstein and published by "O'Reilly Media, Inc.". This book was released on 2002 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have revised and updated this bestseller to include both the Oracle8i and new Oracle9i Internet-savvy database products.

Author : Cary Millsap
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1449366783
Total Pages : 418 pages
Book Rating : 4.80/5 ( download)

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Download or read book Optimizing Oracle Performance written by Cary Millsap and published by "O'Reilly Media, Inc.". This book was released on 2003-09-16 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Author : Jonathan Lewis
Publisher : Addison-Wesley Professional
ISBN 13 :
Total Pages : 682 pages
Book Rating : 4.38/5 ( download)

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Download or read book Practical Oracle8i written by Jonathan Lewis and published by Addison-Wesley Professional. This book was released on 2001 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide to using the Oracle database shows readers which features work well, which features work well together, and which features have a serious impact on each other. It should allow the reader to build a better database that runs on a less expensive computer.

Author : Steven Feuerstein
Publisher : "O'Reilly Media, Inc."
ISBN 13 : 1449378765
Total Pages : 207 pages
Book Rating : 4.69/5 ( download)

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Download or read book Oracle PL/SQL Best Practices written by Steven Feuerstein and published by "O'Reilly Media, Inc.". This book was released on 2001-04-09 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, Steven Feuerstein, widely recognized as one of the world's experts on the Oracle PL/SQL language, distills his many years of programming, writing, and teaching about PL/SQL into a set of PL/SQL language "best practices"--rules for writing code that is readable, maintainable, and efficient. Too often, developers focus on simply writing programs that run without errors--and ignore the impact of poorly written code upon both system performance and their ability (and their colleagues' ability) to maintain that code over time.Oracle PL/SQL Best Practices is a concise, easy-to-use reference to Feuerstein's recommendations for excellent PL/SQL coding. It answers the kinds of questions PL/SQL developers most frequently ask about their code: How should I format my code? What naming conventions, if any, should I use? How can I write my packages so they can be more easily maintained? What is the most efficient way to query information from the database? How can I get all the developers on my team to handle errors the same way? The book contains 120 best practices, divided by topic area. It's full of advice on the program development process, coding style, writing SQL in PL/SQL, data structures, control structures, exception handling, program and package construction, and built-in packages. It also contains a handy, pull-out quick reference card. As a helpful supplement to the text, code examples demonstrating each of the best practices are available on the O'Reilly web site.Oracle PL/SQL Best Practices is intended as a companion to O'Reilly's larger Oracle PL/SQL books. It's a compact, readable reference that you'll turn to again and again--a book that no serious developer can afford to be without.

Author : Christian Antognini
Publisher : Apress
ISBN 13 : 1430204982
Total Pages : 603 pages
Book Rating : 4.85/5 ( download)

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Download or read book Troubleshooting Oracle Performance written by Christian Antognini and published by Apress. This book was released on 2008-08-20 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: When your database application isn’t running fast enough, troubleshooting is usually your first move. Finding the slow part of an application is often easy, but discovering a solution can prove much more difficult. Troubleshooting Oracle Performance helps by providing a systematic approach to addressing the underlying causes of poor database application performance. Written for developers by an application developer who has learned by doing, this book shows you how to plan for performance as you would for any other application requirement.

Author : Steve Ries
Publisher : Packt Publishing Ltd
ISBN 13 : 1849687315
Total Pages : 777 pages
Book Rating : 4.17/5 ( download)

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Download or read book Oca Oracle Database 11g Database Administration I written by Steve Ries and published by Packt Publishing Ltd. This book was released on 2013-02-22 with total page 777 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developed as a practical book, "Oracle Database 11g Administration I Certification Guide" will show you all you need to know to effectively excel at being an Oracle DBA, for both examinations and the real world. This book is for anyone who needs the essential skills to become an Oracle DBA, pass the Oracle Database Administration I exam, and use those skills in the real world to manage secure, high performance, and highly available Oracle databases.