You perform an object - relational mapping in two steps 實現對象-關系映射需要兩步。
Object - relational mapping dtds to databases 關系映射算法及實現
In the first part of the object - relational mapping , the models and attributes of 在對象-關系映射的第一部分,
While the object - relational mapping adheres to object - oriented technology , it is not ideal , either 雖然對象-關系映射是采用面向對象的技術,但是也不夠理想。
Other lightweight solutions , such as ibatis and the active record design pattern , don t try to do object - relational mapping at all 其他輕量級解決方案,例如ibatis和active record設計模式,根本不會試圖進行對象關系映射。
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.