You perform an object - relational mapping in two steps 实现对象-关系映射需要两步。
Object - relational mapping dtds to databases 关系映射算法及实现
In the first part of the object - relational mapping , the models and attributes of 在对象-关系映射的第一部分,
While the object - relational mapping adheres to object - oriented technology , it is not ideal , either 虽然对象-关系映射是采用面向对象的技术,但是也不够理想。
Other lightweight solutions , such as ibatis and the active record design pattern , don t try to do object - relational mapping at all 其他轻量级解决方案,例如ibatis和active record设计模式,根本不会试图进行对象关系映射。
Object-relational mapping (ORM, O/RM, and O/R mapping) in computer software is a programming technique for converting data between incompatible type systems in object-oriented programming languages. This creates, in effect, a "virtual object database" that can be used from within the programming language.