Then we will introduce how to build an entity - relationship diagram and the normalization of tables.

接著我们要介绍如何建立个体 关联图 以及资料表的正规化.

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An entity - relationship model may define certain constraints to which the contents of a database must confirm.

实体关系模型可以定义数据库的内容必须遵守的某些限制.

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The conceptual model of the discipline architecture is represented through an extended entity - relationship approach.

用扩展的实体 - 联系方法描述学科体系结构的概念模型.

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Database design: An OLTP system usually adopts an entity - relationship ( ER ) model and an application - oriented database design.

数据库设计: 通常,OLTP系统采用实体 - 联系 ( ER ) 模型和面向应用的数据库设计.

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