实体联系 meaning in Chinese
entity relationship
Examples
- Review the precise requirements for logical to physical mapping ; and
覆检逻辑与实体联系的精确需求；及 - Key defining the target of this step was to reform relationships between entities , and to define the primary key and foreign key for every entity ; 4
（ 3 ）定义键本阶段的目标是改善实体联系，为每个实体定义主键，迁移主键以建立外键。 - With the help of the desiign principle of standardized database , it concludes the approach how to eliminate transfer dependence on the correlative tables , and discusses the way of how to use entity - relationship ( e - r ) model to design the database
论文还通过范式及规范理论，推导了如何消除关系表中的传递依赖，并讨论了使用实体联系( e - r )模型设计数据库的方法。 - The entity related data model to implement the pdm is introduced . the development method of evolving and increasing pdm database , developing procedure and its design are put forward . in the third chapter , the evolving and increasing of the pdm system is analyzed from view of the user and designer
第二章，阐述了pdm数据库的递增进化过程，递增进化的pdm系统数据模型，对数据对象实体联系模型进行了分类，介绍了pdm系统实现的数据对象实体联系模型，提出了pdm数据库递增进化开发方法、步骤和设计过程。 - Relationship defining according to the ideflx method , on the basis of building a relationship matrix of basic information entities , seven information entities were validated , including customer entity , member entity , project entity , mold entity , assignment entity , member of assignment entity , and file entity . and then , relationships between these information entities were discussed ; 3
（ 2 ）定义联系按照idefix方法，通过建立实体联系矩阵并进行联系分析，最终确定信息实体包括客户信息、成员信息、项目信息、模具信息、任务信息、任务成员和文件信息七大项，并建立实体联系定义表，构造出实体级图。