[Person]
*name
height
weight
+birth_location_id
[Location]
*id
city
state
country
Person *--1 Location
为如下所示的图表：
The only one I've found apart from Erwiz is a Haskell package called erd, which doesn't look as stale as Erwiz does (most recent commit about a month ago, versus 4 years). It works very similarly to Erwiz, converting files formatted like this:
[Person]
*name
height
weight
+birth_location_id
[Location]
*id
city
state
country
Person *--1 Location
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试试这个：http://slopjong.de/2011/02/26/whats -erviz/
Erviz 由 Mitsuru Kono 编写，是一个可以轻松创建实体关系模型的工具，而且最好的是它是免费的！
Try this one: http://slopjong.de/2011/02/26/whats-erviz/
Erviz, written by Mitsuru Kono, is a tool that makes it easy to create entity-relation models and the best thing it’s free!
除了 Erwiz 之外，我发现的唯一一个是名为 erd 的 Haskell 包，它看起来不像像 Erwiz 一样陈旧（最近一次提交大约是一个月前，而不是 4 年）。它的工作原理与 Erwiz 非常相似，将如下格式的文件转换
为如下所示的图表：
The only one I've found apart from Erwiz is a Haskell package called erd, which doesn't look as stale as Erwiz does (most recent commit about a month ago, versus 4 years). It works very similarly to Erwiz, converting files formatted like this:
into diagrams that look like this: