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Entity relationship diagram display method and device

A technology of entity relationship diagram and display device, which is applied in the field of database and can solve the problems of low drawing efficiency and poor display effect of E-R diagram

Active Publication Date: 2017-10-10
ADVANCED NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] This application provides a method and device for displaying an entity connection diagram to solve the problems of low drawing efficiency and poor display effect of existing E-R diagrams

Method used

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  • Entity relationship diagram display method and device
  • Entity relationship diagram display method and device
  • Entity relationship diagram display method and device

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Embodiment Construction

[0041] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0042] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention relates to an entity relationship diagram display method and device. The display method comprises the following steps of: obtaining an attribute of an entity type; determining an entity type set according to the attribute, wherein the entity type set comprises a plurality of entity types with the same attribute; and displaying the entity type set through a preset diagram. According to the method, all the entity types in the entity type set are represented by the preset diagram, so that the work of drawing a lot of same entity diagrams is decreased, the entity relationship diagram drawing efficiency is improved, the entity relationship diagrams are more concise and visual, and the entity relationship diagram display effect is improved.

Description

technical field [0001] The present application relates to the technical field of databases, in particular to a method and device for displaying entity relationship diagrams. Background technique [0002] In a database system, it is usually necessary to model data and information, and the established model is called a data model. The relationship between various data entities in the data model can be displayed graphically, and the displayed graph is called an entity-relationship diagram (Entity-Relationship Diagram, E-R diagram). The E-R diagram is mainly composed of three elements: entity type, entity attribute and connection between entities. [0003] Among them, entity refers to things that exist objectively and can be distinguished from each other, for example, it can be an employee, a student, a course selection of a student, a user or an order of a user, and so on. [0004] An attribute of an entity refers to a certain characteristic of the entity. An entity can be c...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/288
Inventor 付威
Owner ADVANCED NEW TECH CO LTD
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