It's rare that a good object model will make a good database schema (or vice versa).
一个好的对象模型很少会生成一个好的数据库模式(反之亦然)。
A lot of work goes into the details of a good database design at the level of specific project requirements.
一个良好的数据库设计还需要在特定的项目需求级别上对细节做大量工作。
Many tools can help you in creating a good database schema, just as many tools can assist in designing object-oriented systems.
许多工具都能帮助您创建良好的数据库模式,就好像许多工具都能协助设计面向对象的系统一样。
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