entity relationship diagram是什么意思

网络释义

用法例句

According to the method of entity-relationship, the relations of data were analyzed and entity relationship diagram was drawn.

对区域土壤信息系统应具备的功能和信息类型进行了描述,根据实体关系方法,分析数据之间的关系,绘制了实体关系图。

Use to connect processes in your Entity Relationship diagram.

用于连接实体关系图中的各个进程。

Use to define a foreign key between two tables in your Entity Relationship diagram.

用于在实体关系图中定义两个表之间的外键。

Use to connect a parent table to a category in your Entity Relationship diagram.

用于将父表连接到实体关系图中的某个类别。

Use to connect a category to a child table in your Entity Relationship diagram.

用于将类别连接到实体关系图中的某个子表。

Use to specify that one or more tables in your Entity Relationship diagram are categories in another table.

用于指定实体关系图中的一个或多个表是另一个表中的类别。

Use to specify that one or more tables are categories in another table in your Entity Relationship diagram.

用于指定实体关系图中一个或多个表是另一个表中的类别。

The geometry of a conventional diffraction experiment with a solid or liquid is illustrated in Fig. 355.

图355是固体和液体的一般衍射实验的几何关系图。

This paper attempts to reveal the concrete relationship between them by means of retrieval examples.

本文试图从一些检索实例揭示查全率与查准率之间的具体关系。

This relationship is not shown because the entities it is connected to are not placed on the diagram.

由于所连接的实体尚未放置于该图表上，因此此关系未显示。

On the Establishment of Public Relation Systems in Academic Library;

浅谈高校图书馆公共关系体系的创建

A term applied to hierarchical structure of entities;for example, to a company organization chart or a genealogy.

用在层次型的实体结构中的一个术语，例如，一个公司的机构图或一个家族的关系图。

After all the eigenvalues have been considered, isomorphism will be determined and correspondence of vertices in isomorphic graphs can be ultimately identified.

通过逐一考查全体特征值，实现图同构的判定并确定同构图的顶点对应关系。

drag an entity it is involved with to the diagram.

将与它相关的一个实体拖到图表上。

The Relationship between Static Disparity Graph of Stereogram and Density of Random Dot

静态立体图视差图形与随机点密度关系的研究

Rely on the Medium Resources and Construct the Pre-eminent Brand--On the Relatiaon Between Hebei Publishing Industry and Other Media;

论河北图书出版业与其他媒体之关系

A New Explanation of Six Elements of Mapmaking and Related Issues

制图六体新释、传承及与西法的关系

The Facts Database of University Library and the Library Self-Evaluation System

高校图书馆事实数据库与图书馆自我评估体系

Research and Realization of Hull Profiled Bar Machining Graphics System;

船体型材下料图形系统的研究与实现