如何在关系数据库中进行继承建模?

How to do Inheritance Modeling in Relational Databases?(如何在关系数据库中进行继承建模?)

问题描述

我的问题是关于关系数据库系统中的继承建模.我有规范的数据模型，并且我有一些与从产品表继承某些属性的产品定价相关的字段，我想在 MySQL 关系数据库中对这种继承进行建模，因此，

我们如何在关系数据库中进行继承建模?"

谢谢.

Martin Fowler 在他的《企业应用程序架构模式》一书中广泛讨论了这个问题.获取这本书并查看:

1. 2. 3. 该网站应该会给您一些想法.您可能还想阅读有关继承映射器 的部分.每种不同的方法都有其优点和缺点，因此请明智地选择.

         My question is regarding Inheritance modeling in Relational Database Systems. I have canonical data model and in that I have some fields related to pricing of product inheriting certain attributes from product table and I want to model this inheritance in MySQL relational database and so,

         "How can we do Inheritance Modeling in Relational Databases ?"

         Thanks.

         解决方案

         Martin Fowler discusses this extensively in his book Patterns of Enterprise Application Architecture book. Get this book and look into:

         1. Single Table Inheritance
         2. Class Table Inheritance
         3. Concrete Table Inheritance

         The Website should give you some idea. You might also want to read the section on inheritance mappers. Each of the different approaches have their pros and cons so choose wisely.

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