如何添加具有自定义属性的实体 [英] How to add entity with customized properties

问题描述

我创建了一个实体模型，并试图添加一个具有自定义属性的实体(从数据源中的表中提取).有谁知道一个好的教程，或者我该怎么做呢?

我遇到了诸如PK冲突之类的错误.

我所拥有的是从数据库中导入的TableA，TableB和TableC.

我想用TableA和TableB的属性创建TableD.

任何帮助将不胜感激.谢谢！

I created an Entity Model and am trying to add an entity with customized properties (pulled from tables within the data source). Does anyone know a good tutorial or how I can go about doing this?

I''m running into some errors like PK collisions.

What I have is TableA, TableB, and TableC imported from the database.

I want to create TableD with properties from TableA and TableB.

Any help would be greatly appreciated. Thank you!

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