Oracle数据库架构权威指南:第三版

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《专家Oracle数据库架构3rd》是一本深入探讨Oracle数据库系统设计与管理的专业书籍,作者结合自身丰富的开发经验和对Oracle技术的理解,为读者揭示了Oracle数据库架构的各个方面。本书旨在帮助读者理解和构建高效、稳定的Oracle应用,适用于数据库管理员、开发者以及所有对Oracle技术感兴趣的人员。 首先,书中在引言部分介绍了作者的背景和创作灵感,强调了这本书是基于作者在实际开发Oracle软件过程中的实践和观察。全书共分为15章,涵盖了从设置开发环境到高级主题的全面内容: 1. **第一章:开发成功的Oracle应用程序** - 提供了开发Oracle应用的基础知识,包括最佳实践和设计原则,确保应用的高效性和可靠性。 2. **第二章:架构概述** - 概述了Oracle数据库的整体架构,解释了各个组件如何协同工作,为后续章节打下基础。 3. **第三章:文件** - 讨论了Oracle数据库文件结构,包括数据文件、控制文件、重做日志文件等及其管理。 4. **第四章:内存结构** - 揭示了Oracle内存管理的内部工作原理,如SGA(共享全局区)、PGA(程序全局区)等关键内存区域。 5. **第五章:Oracle进程** - 详述了Oracle服务器运行的各种进程,如后台进程、用户进程和监控进程的角色。 6. **第六章:锁定与闩锁** - 讲解了并发控制机制,如何避免数据冲突和死锁问题。 7. **第七章:并发与多版本并发控制** - 解释了Oracle如何处理多个事务并发操作的数据一致性问题。 8. **第八章:事务** - 探讨了事务的概念、隔离级别以及如何确保数据的一致性。 9. **第九章:重做与撤销** - 描述了Oracle的事务提交机制,以及重做日志在恢复过程中的关键作用。 10. **第十章:数据库表** - 介绍了表的结构、索引、分区等,以及优化查询性能的方法。 11. **第十一章:索引** - 紧密围绕索引设计,包括B树、位图索引等不同类型的索引及其优化策略。 12. **第十二章:数据类型** - 分析了Oracle支持的各种数据类型,以及它们在存储和处理中的特性。 13. **第十三章:分区** - 阐述了如何通过分区来管理大型数据集,提高查询性能和维护效率。 14. **第十四章:并行执行** - 探讨了Oracle的并行查询和分布式计算技术,以提升数据处理能力。 15. **第十五章:数据加载与卸载** - 覆盖了数据导入导出工具、批量加载以及数据迁移的最佳实践。 最后,本书还附有详细的索引,方便读者快速查找所需的信息。无论是初学者还是经验丰富的Oracle从业者,都能从这本书中找到深入理解Oracle数据库架构的宝贵资源。通过学习本书,读者可以提升在Oracle数据库项目中的设计、优化和管理能力。
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The inspiration for the material contained in this book comes from my experiences developing Oracle software, and from working with fellow Oracle developers to help them build reliable and robust applications based on the Oracle database. The book is basically a reflection of what I do every day and of the issues I see people encountering each and every day. I covered what I felt was most relevant, namely the Oracle database and its architecture. I could have written a similarly titled book explaining how to develop an application using a specific language and architecture—for example, one using JavaServer Pages that speaks to Enterprise JavaBeans, which in turn uses JDBC to communicate with Oracle. However, at the end of the day, you really do need to understand the topics covered in this book in order to build such an application successfully. This book deals with what I believe needs to be universally known to develop successfully with Oracle, whether you are a Visual Basic programmer using ODBC, a Java programmer using EJBs and JDBC, or a Perl programmer using DBI Perl. This book does not promote any specific application architecture; it does not compare three tier to client/server. Rather, it covers what the database can do and what you must understand about the way it works. Since the database is at the heart of any application architecture, the book should have a broad audience. As the title suggests, Expert Oracle Database Architecture concentrates on the database architecture and how the database itself works. I cover the Oracle database architecture in depth: the files, memory structures, and processes that comprise an Oracle database and instance. I then move on to discuss important database topics such as locking, concurrency controls, how transactions work, and redo and undo, and why it is important for you to know about these things. Lastly, I examine the physical structures in the database such as tables, indexes, and datatypes, covering techniques for making optimal use of them.