certification objectives:

• Position the Oracle Product Family
• Explain Relational Structures
• Understand the SQL Language
• Appreciate the DBA's Role

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认证目标：

• 定位Oracle产品系列
• 解释关系结构
• 理解SQL语言
• 领会DBA的角色
  

This chapter describes the entire oracle product family,the concepts behind relational databases,the SQL language,and the role of database administrator(DBA) in the IT environment.The content is not directly tested in the OCP examination,but is assumed knowledge that provides an essential background to the study of Oracle database administration.It alse gives an idea of the scope of a DBA's work.The DBA is often expected to know everything about everything.Well,that isn't possible-but at lease he/she should aware of the whole environment and how the parts link together.

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本章描述了整个Oracle产品系列，关系数据库的概念，SQL语言以及DBA在IT环境下的角色。OCP考试不会直接考察这些内容，但是这些内容为研究Oracle数据库管理提供了必要地背景知识，并且给出了一个DBA工作范围的观念。DBA常常被期望为知晓万事万物， 那是不可能的。但是至少他/她应该知道整个环境以及各部分如何连接在一起的。

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The Oracle server technologies product set is more than a database.There are also the Oracle Application Server and the Oracle Enterprise Manager.Taken together,these are the server technologies that make up the Oracle Grid offering.Grid computing is an emerging environment for managing the complete IT environment and for providing resources to users on demand.

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Oracle服务技术产品集合不仅仅是一个数据库，还有Oracle应用服务器和Oracle企业管理器。这些服务器技术放在一起，就构成了Oracle网格。网格计算机是一个管理整个IT环境并提供用户所需资源的新兴环境。

Supplied with the server technologies are the development tools:third-generation language(3GLs) and rapid application development tools.It is also possible to write ?software in a wide range of third-party application development environments.Oracle Corporation has a total commitment to supporting international standards for data processing,which means that it is perfectly possible to run third-part products on the Oracle technology stack.

与服务器技术一起提供的是开发工具，即第三代语言(3GLs)和快速应用开发工具，此外，可以在许多第三方应用程序开发环境中编写软件。Oracle公司全面承诺支持数据处理的网络标准，意味着在Oracle技术堆上完美地运行第三方产品成为可能。

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