Spring JDBC：如何创建表？ [英] Spring JDBC: How to create the tables?

问题描述

我正在使用带有DAO模式的Spring JdbcTemplate 来访问数据库。我没有手动创建数据库表，而是在寻找一种在DAO层生成表的方法。
我明白我可以使用 JdbcTemplate 来执行语句，我只是在寻找合适的地方。

I am using Spring JdbcTemplate with the DAO pattern to access a database. Instead of creating the database tables manually, I am looking for a way to generate the tables in the DAO layer. I understand that I can use the JdbcTemplate to execute statements, I am only looking for the right place to do it.

是否有最佳做法？

推荐答案

稍微偏离主题：

您是否需要在代码中执行DDL命令？事实上，我认为将db admin和db usage分开是个好主意。我们实际设置了这里的Oracle数据库安全设置，以便使用不同的数据库用户（DB_OWNER）设置表，而不是运行SELECT，INSERT，DELETE由DB_USER运行的表。

Is it absolutely necessary that you need to execute the DDL commands from within your code? In fact I do think it is a good idea to have separation between db admin and db usage. Our Oracle database security setup here is actually set up so that the tables are set up using a different database user (DB_OWNER), than the one running the SELECTs, INSERTs, DELETEs are run by DB_USER.

这可以防止意外删除表或修改模式，并允许设置DB_USER，以便只授予绝对必要的权限，这会增加一层安全性。

This prevents accidentially deleting tables or modifying the schema and also allows the DB_USER to be setup such that only the privileges that are absolutely necessary are granted, which adds a layer of security.

我认为这取决于您的服务/应用程序的性质，但考虑在代码中创建表的好处（以及DDL代码中的可能错误是否会意外破坏生产数据）。

I suppose it depends on the nature of your service/application, but think about the benefit of creating the tables inside the code (and whether a possible bug in the DDL code could accidentially destroy production data).

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