If your ORM framework offers facilities for modeling referential constraints, these are again defined both on your DB and in your application code.

如果OR M框架为引用限制的建模提供了便利的话，这些内容会在你的数据库和应用程序代码上重复定义。

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MindScape has released version 2.0 of their domain modeling and ORM tool.

MindScape最近发布了他们域建模和OR M工具的2.0版本。

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