View Larger Image	Rick Greenwald, Robert Stackowiak, Jonathan Stern O'Reilly Media, Paperback, 4th edition, Published November 2007, 406 pages, ISBN 0596514549
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Read an excerpt: Chapter 4: Oracle Data Structures       Excerpt provided courtesy of O'Reilly Media. Copyright © O'Reilly Media, Inc. Written permission from the publisher is required for any use of this material.

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• Databases : Oracle

• O'Reilly Media

Oracle is an enormous system, with myriad technologies, options, and releases. Most users-even experienced developers and database administrators-find it difficult to get a handle on the full scope of the Oracle database. And, as each new Oracle version is released, users find themselves under increasing pressure to learn about a whole range of new technologies. The latest challenge is Oracle Database 11g.

This book distills an enormous amount of information about Oracle into a compact, easy-to-read volume filled with focused text, illustrations, and helpful hints.

It contains chapters on:

• Oracle products, options, data structures, and overall architecture for Oracle Database 11g, as well as earlier releases (Oracle Database 10g, Oracle9i, and Oracle8i)



• Installing, running, managing, monitoring, networking, and tuning Oracle, including Enterprise Manager (EM) and Oracle's self-tuning and management capabilities; and using Oracle security, auditing, and compliance (a new chapter in this edition)



• Multiuser concurrency, data warehouses, distributed databases, online transaction processing (OLTP), high availability, and hardware architectures (e.g., SMP, clusters, NUMA, and grid computing)



• Features beyond the Oracle database: Oracle Application Express, Fusion Middleware (including Oracle Application Server), and database SOA support as a Web services provider

The latest Oracle Database 11g features: query result set caching, Automatic Memory Management, the Real Application Testing, Advanced Compression, Total Recall, and Active Data Guard Option Options, changes to the OLAP Option (transparently accessed and managed as materialized views), the Flashback transaction command, transparent data encryption, the Support Workbench (and diagnosability infrastructure), and partitioning enhancements (including interval and new composite types)

For new Oracle users, DBAs, developers, and managers, Oracle Essentials provides an invaluable, all-in-one introduction to the full range of Oracle features and technologies, including the just-released Oracle Database 11g features. But even if you already have a library full of Oracle documentation, you'll find that this compact book is the one you turn to, again and again, as your one-stop, truly essential reference.

"Oracle Essentials gives a clear explanation of the key database concepts and architecture underlying the Oracle database. It's a great reference for anyone doing development or management of Oracle databases."

--Andrew Mendelsohn, Senior Vice President, Database Server Technologies, Oracle Corporation

Table of Contents

Preface

1. Introducing Oracle
The Evolution of the Relational Database
The Oracle Database Family
Summary of Oracle Database Features
Database Application Development Features
Database Connection Features
Distributed Database Features
Data Movement Features
Database Performance Features
Database Management Features
Database Security Features
Oracle Development Tools
Embedded Databases

2. Oracle Architecture
Databases and Instances
Deploying Physical Components
Instance Memory and Processes
The Data Dictionary

3. Installing and Running Oracle
Installing Oracle
Creating a Database
Configuring Oracle Net
Starting Up the Database
Shutting Down the Database
Accessing a Database
Oracle at Work

4. Oracle Data Structures
Datatypes
Basic Data Structures
Additional Data Structures
Extended Logic for Data
Data Design
Constraints
Triggers
Query Optimization
Understanding the Execution Plan
SQL Advisors
Data Dictionary Tables

5. Managing Oracle
Manageability Features
Oracle Enterprise Manager
Fragmentation and Reorganization
Backup and Recovery
Working with Oracle Support

6. Oracle Security, Auditing, and Compliance
Security
Auditing
Compliance

7. Oracle Performance
Performance Tuning Basics
Oracle and Disk I/O Resources
Oracle and Parallelism
Oracle and Memory Resources
Oracle and CPU Resources
Database Resource Manager

8. Oracle Multiuser Concurrency
Basics of Concurrent Access
Oracle and Concurrent User Access
Oracle's Isolation Levels
Oracle Concurrency Features
How Oracle Handles Locking
Concurrent Access and Performance
Workspaces

9. Oracle and Transaction Processing
OLTP Basics
Oracle's OLTP Heritage
Architectures for OLTP
Oracle Features for OLTP
High Availability
Oracle Streams and Advanced Queuing
Object Technologies and Distributed Components

10. Oracle Data Warehousing and Business Intelligence
Business Intelligence Basics
Data Warehouse Design
Query Optimization
Analytics, OLAP, and Data Mining in the Database
Managing the Data Warehouse
Other Software for the Data Warehouse
The Metadata Challenge
Best Practices

11. Oracle and High Availability
What Is High Availability?
System Failure
Protecting Against System Failure
Recovering from Failures
Complete Site Failure
Data Redundancy Solutions
Rolling Upgrades

12. Oracle and Hardware Architecture
System Basics
Uniprocessor Systems
Symmetric Multiprocessing Systems
Clusters
Non-Uniform Memory Access Systems
Grid Computing
Disk and Storage Technology
Which Platform Deployment Solution?

13. Oracle Distributed Databases and Distributed Data
Accessing Multiple Databases As a Single Entity
Moving Data Between Distributed Systems

14. Oracle Extended Datatypes
Object-Oriented Development
Extensibility Features and Options
Using the Extensibility Framework in Oracle

15. Beyond the Oracle Database
Application Express
Oracle Fusion Middleware
Oracle SOA Suite

A. What's New in This Book for Oracle Database 11g

B. Additional Resources

Index

About the Author

Rick Greenwald has been active in the world of computer software for nearly two decades, including stints with Data General, Cognos, and Gupta. He is currently an analyst with Oracle Corporation. He has been a principal author of ten books and countless articles on a variety of technical topics, and has spoken at conferences and training sessions across six continents. In addition to Oracle in a Nutshell, Rick's books include Oracle Essentials: Oracle9i, Oracle8i, and Oracle8 (principal author with Robert Stackowiak and Jonathan Stern, O'Reilly Media, Inc., 2001), Oracle Power Objects Developer's Guide (principal author with Kasu Sista and Richard Finklestein, Oracle Press, 1995); Mastering Oracle Power Objects (principal author with Robert Hoskins, O'Reilly Media, Inc., 1996); Using Oracle Web Server (principal author with many others, Que Publishing, 1997); The Oracle WebDB Bible (principal author with Jim Milbery, IDG Books Worldwide, 1999); and Administering Exchange Server (principal author with Walter Glenn, Microsoft Press, 1999).

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