And then it has introduces the design of database in detail, and drawn entity relationship diagram. 然后对数据库的设计进行了详细的介绍,并绘制了实体关系(ER)图。
Use to specify that one or more tables are categories in another table in your Entity Relationship(ER) diagram. 用于指定实体关系(ER)图中一个或多个表是另一个表中的类别。
For example, in the case of an entity relationship between a manager and an employee, the employees are managed by a single manager. 例如,就一个管理者和一个员工之间的实体关系(ER)来说,多个员工是被一个管理者管理的。
In this paper, we present a system to acquire enterprise competitive intelligence, which is based on the entity relationship extraction and fusion of Web pages. 本文提出了一个基于网页实体关系(ER)抽取与融合的企业竞争情报获取系统框架。
Database model : Includes an entity relationship diagram for the databases the SOA uses. 数据库模型:包括SOA使用的数据库的实体关系(ER)图。