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。
To test your application, you first deploy the security deployment plan for your application, as defined in my-db-plan.xml, then you deploy your application.
要测试应用程序，首先要部署应用程序的安全性部署计划(在my - db - plan . xml中定义)，然后部署应用程序。
Set your database name to the directory path where the Derby database should reside on the file system; for example: c: \ projects \ wishlist \ db \ wishlist_prod.
将数据库名称设置为Derby数据库在文件系统中驻留的目录路径，例如：c： \ projects \ wishlist \ db \ wishlist _ prod。
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