数据库实体关系图（ERD）及其画法 - CSDN博客
2020年10月10日 · 实体关系图，又称ERD、ER图或ER模型，是一种用于数据库设计的结构图。 ERD包含不同的符号和连接器，它们可视化两个重要的信息:系统范围内的主要实体，以及这 …
ER Diagram Tool | Free Online App - SmartDraw
You can choose an automatic template and generate your ER diagram using data from your database or choose one of the manual ERD templates included and design your database …
Entity–relationship model - Wikipedia
An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things …
Entity-Relationship-Modell – Wikipedia
Das Entity-Relationship-Modell – kurz ER-Modell oder ERM – dient dazu, im Rahmen der semantischen Datenmodellierung den in einem gegebenen Kontext relevanten Ausschnitt der …
A Guide to the Entity Relationship Diagram (ERD) - Database Star
An Entity Relationship Diagram (ERD) is a type of diagram that lets you see how different entities (e.g. people, customers, or other objects) relate to each other in an application or a database. …
Entity Relationship Diagrams | Mermaid - JS.ORG
An entity–relationship model (or ER model) describes interrelated things of interest in a specific domain of knowledge. A basic ER model is composed of entity types (which classify the things …
ER模型 - 维基百科，自由的百科全书
ER模型，全称为 实体联系模型 、 实体关系模型 或 实体联系模式图（ERM） （英語： Entity-relationship model）由美籍台湾人计算机科学家 陈品山 发明，是 概念数据模型 的高层描述所 …
什么是实体关系图（ERD）？ - Visual Paradigm
实体关系图也被称为 ERD、ER 图、实体联系模型、实体联系模式图或 ER 模型，是一种用于数据库设计的结构图。 一幅 ERD 包含不同的符号和连接符，用于显示两个重要的資訊： 系统范 …
Difference Between Erm And Erd - Restackio
4 天之前 · Entity Relationship Modeling (ERM) is a high-level conceptual framework that outlines the entities relevant to a system and their interrelationships. It focuses on the overall structure …
ER Diagram (ERD) - Definition & Overview | Lucidchart
What is an Entity Relationship Diagram (ERD)? See ultimate guide to ER diagrams including a video overview, origins, uses, examples, components, limitations, and guidelines on how to …