一个数据源可以四像关系型数据库管理体统这样的数据库,可以是面向对象型的数据库管理系统,可以是XML文档,也可以是简单文件等等.

A data source could be a database such as an RDBMS, OODBMS, XML repository, flat file system, and so forth.

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因为ActiveRecord的大部分代码存在的原因是对象和关系型数据库的不匹配现象，许多ActiveRecord的代码都将变得毫无必要。

Since much of ActiveRecord is there because of the impedance mismatch between objects and relational databases, a lot of ActiveRecord will be unnecessary.

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Django提供了自己的对象关系型数据映射组件(object - relational mapper, orm)库，它可以通过Python对象接口支持动态数据库访问。

Django comes with its own object-relational mapper (ORM) library that supports dynamic database access through a Python object interface.

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