Visio如何绘制E-R图？

原創 code_Zbw 2020-07-03 23:32

①、首先创建一个空白绘图【其他绘图也可以】

②、在更多形状中进行选择 如下图☟☟☟

在这里插入图片描述

可以看到 如下图形： E-R图三要素 ，实体 、关系、 属性
在这里插入图片描述

补充 ：为什么选择Chen’s数据库表示法 ？【个人比较好奇】
  ER模型最早由Peter Chen（陈品山）于1976年提出，并且它在数据库设计领域得到了广泛的认同。 【所以…】

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