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1 Introduction to the Oracle Database
This chapter provides an overview of the Oracle database server.
The topics include:
Oracle Database Architecture
Oracle Database Features
Oracle Database Application Development
本章对 Oracle 数据库服务器进行概括性的介绍。本章的主题有：
Oracle 数据库体系结构
Oracle 数据库特性
Oracle 数据库应用开发
Oracle Database Architecture
An Oracle database is a collection of data treated as a unit. The
purpose of a database is to store and retrieve related information.
A database server is the key to solving the problems of information
management. In general, a server reliably manages a large amount
of data in a multiuser environment so that many users can
concurrently access the same data. All this is accomplished while
delivering high performance. A database server also prevents
unauthorized access and provides efficient solutions for failure
recovery.
An Oracle database is a collection of data treated as a unit. The
purpose of a database is to store and retrieve related information.
数据库服务器是解决信息管理问题的核心组件。大体上说，数据库服务器
的作用是可靠地管理多用户环境下的大规模数据，使多用户可以并发地访
问相同的数据，同时实现系统的高性能。数据库服务器还要阻止未授权的
操作，并提供高效的故障恢复解决方案。
Oracle Database is the first database designed for enterprise grid
computing, the most flexible and cost effective way to manage
information and applications. Enterprise grid computing creates
large pools of industry-standard, modular storage and servers.
With this architecture, each new system can be rapidly provisioned
from the pool of components. There is no need for peak workloads,
Oracle 数据库是第一个为企业网格计算而设计的数据库，她为管理信息
和应用提供了灵活、低成本、高效益的方式。企业网格计算把存储及服务
能力转化为符合业界标准、模块化的资源池 （resource pool）。在这种
体系结构之下，新系统可以从组件化的资源池中组合资源而迅速构成。企
业也无需建设尖锋负荷系统 （peak workloads），因为计算能力可以在
需要时轻松地从资源池中获得或重新分配。
