Xem 1-20 trên 319 kết quả Oracle performance
  • 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.

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  • 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.

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  • The books in O'Reilly's Oracle series are authoritative -- they tell the whole story about complex topics, ranging from performance tuning to the use of packages in PL/SQL to new technologies like Power Objects. And they're independent; they're alternatives for readers who need to know how products and features really work. They're packed with real-world advice and techniques from practitioners in the field, and they come with disks containing code you can use immediately in your own applications.

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  • Oracle Corporation is one of the world’s largest vendors of software for managing information. Oracle has over 12,000 employees with offices in 93 countries around the world. One of the reasons Oracle software is so popular is the diversity of platforms it supports. In fact, Oracle software runs on almost every popular computer in the world and is used everywhere from home applications to giant corpora- tions.

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  • This book is about tuning Oracle databases. Three areas of Oracle Database tuning are data model tuning, SQL code tuning, and physical and configuration tuning. The author began his career as an applications developer, not as a systems or network administrator. As a result, this book is written from an applications rather than an operating system perspective.

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  • The Oracle database engine has become a huge piece of software. This not only means that a single human can no longer be roficient in using all the features provided in recent versions, but it also means that some of them will rarely be used. Actually, in most situations, it is enough to know and take advantage of a limited number of core features in order to use the Oracle database engine efficiently and successfully.

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  • Oracle Database Performance Tuning Guide is an aid for people responsible for the operation, maintenance, and performance of Oracle. This book describes detailed ways to enhance Oracle performance by writing and tuning SQL properly, using performance tools, and optimizing instance performance. It also explains how to create an initial database for good performance and includes performance-related reference information. This book could be useful for database administrators, application designers, and programmers.

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  • You can enhance Oracle performance by adjusting database applications, the database itself, and the operating system. Making such adjustments is known as tuning. Proper tuning of Oracle provides the best possible database performance for your specific application and hardware configuration. Note: Oracle8 Tuning contains information that describes the features and functionality of the Oracle8 and the Oracle8 Enterprise Edition products. Oracle8 and Oracle8 Enterprise Edition have the same basic features.

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  • Learn to access Oracle databases through SQL statements and construct PL/SQL programs with guidance from Oracle expert, Jason Price. Published by Oracle Press, Oracle Database 11g SQL explains how to retrieve and modify database information, use SQL Plus and SQL Developer, work with database objects, write PL/SQL programs, and much more. Inside, you'll find in-depth coverage of the very latest SQL features and tools, performance optimization techniques, advanced queries, Java support, and XML. This book contains everything you need to master SQL....

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  • This document contains proprietary information and is protected by copyright and other intellectual property laws. You may copy and print this document solely for your own use in an Oracle training course. The document may not be modified or altered in any way. Except where your use constitutes "fair use" under copyright law, you may not use, share, download, upload, copy, print, display, perform, reproduce, publish, license, post, transmit, or distribute this document in whole or in part without the express authorization of Oracle.......

    pdf284p nghianguyenluong 13-04-2009 774 278   Download

  • The Early Years at Oracle Through the Eyes of Bruce Scott Prior to forming Oracle, Bob Miner was Larry Ellison’s manager when they worked at Ampex together on a CIA project code-named “Oracle.” Larry chose Bob as his manager because he liked Bob a lot more than his original manager. Ed Oates, another founder of Oracle, happened to be walking by Bob Miner’s door when Larry Ellison mentioned his (Larry’s) wife’s name. She turned out to be Ed Oates’ lab partner from high school.

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  • Introduction to Oracle: SQL and PL/SQL is often the first course that many Oracle students attend. You might be their first contact with any Oracle personnel. At the same time, this may be one of the first courses that you teach as an Oracle instructor, so you might appreciate some help in achieving the best performance possible at an early stage of your career. The tools and tips in this section come from the highly recommended AIT (Advanced Instructional Techniques) class, which many Oracle Educaton instructors have attended.

    pdf174p batrinh 12-08-2009 277 148   Download

  • Oracle Database 11g contains several major innovations in the areas of change management, fault diagnosability, performance management, Data Guard administration, storage management, and data warehousing, among other areas. Besides the database administration changes, there are significant improvements in application development–related features, including natively compiled PL/SQL code, PL/SQL inlining, and enhanced triggers.

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  • Oracle Database 2 Day DBA is for anyone who wants to perform common day-to-day administrative tasks with the Oracle Database. Prior knowledge or experience with managing databases is not required. The only requirement is a basic knowledge of computers. In particular this book is targeted toward the following groups of Oracle users: ■ Developers wanting to acquire part-time DBA skills ■ Anyone managing departmental servers ■ Database administrators managing an Oracle database for small or medium business (SMB)...

    pdf166p vitconxinhdep 30-07-2009 282 119   Download

  • This manual is intended for database administrators who perform backup and recovery of an Oracle database server. To use this document, you need to know the following:  Relational database concepts and basic database administration as described in Oracle Database Concepts and Oracle Database Administrator's Guide  The operating system environment under which you are running the Oracle database

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  • This book is intended to help you continue on your exciting new path towards obtaining the Oracle8i certified database administrator certification. The book will give you the necessary knowledge of the Oracle Server architec- ture and the hands-on skills you need to pass Exams 1Z0-024 and 1Z0-026. Although the OCP exams for Database Administration can be taken in any order, it is generally recommended that the Oracle8i OCP certification exam for Performance and Tuning and the Oracle8i OCP certification exam for Network Administration be the final exams taken in the series. ...

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  • Oracle Database Administration for Microsoft SQL Server DBAs part 1 takes the administration topics with which the SQL Server DBA is familiar, translates them into Oracle terms, and then expands on Oracle functionality. Definitions and comparative terms run throughout the book so the SQL Server DBA can easily leverage existing knowledge.

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  • Oracle Database on Windows is a stable, reliable, and high performing system upon which to build applications. Each release of the database provides new platform-specific features for high performance on Windows.

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  • Oracle Real Application Clusters (RAC) enables multiple instances that are linked by an interconnect to share access to an Oracle database. This enables RAC to provide high availability, scalability, and redundancy during failures. RAC provides scalability without requiring application code changes.This book is intended for chief technology officers, information technology architects, database administrators, system administrators, network administrators, and application administrators who perform the following tasks:...

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  • This book is intended for anyone who uses Oracle Reports to build reports. The needs of both novice and advanced users are addressed. Each chapter contains stepby- step instructions to build a report from start to finish. Each report that you build will demonstrate how to use many of the powerful features in Report Builder. Some of the tasks in this manual tell you how to access online help for additional information. If you see a table like the one that follows, use the steps to get more information about the task you are performing:...

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