For example, we can have an order business item with its attributes such as orderItems and valid.
例如，我们有order业务项目，它有诸如 orderItems和 valid 之类的属性。
This may be a lot to take in - basically a User has many Orders, each of which is composed of several OrderItems.
这里有许多信息--用户由许多订单，每个订单有几个订单条目。
For example, an orders business item could include an orderItems attribute of type OrderItem from the same or a different data catalog.
例如，order业务项目可能包括orderitem类型的属性orderitems，该类型位于同一或不同数据目录中。
The object model has an Address class that has no corresponding table in the database, and the database has an OrderItems table that has no corresponding class.
数据库中有OrderItems表，但是对象模型中并没有与之对应的持久化的类。
The OrderItems table is a link table in a many-to-many relationship between Orders and Products. As such, it does not represent an entity from the business model.
OrderItems表是多对多关系中Orders和Products的连接表，这样也不能代表对象模型中的一个实体。
The OrderItems table is a link table in a many-to-many relationship between Orders and Products. As such, it does not represent an entity from the business model.
OrderItems表是多对多关系中Orders和Products的连接表，这样也不能代表对象模型中的一个实体。
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