object relational data model的意思|示意

The using of data in information system is confronted with such a difficulty that data storage is based on relational model while software development is under object model.

提出并建立了一个软件框架，并就对象模式到关系模式的转换进行了研究。

NHMDB is a multimedia database system based on the extended relational data model and has the characteristics of object-oriented databases.

NHMDB是基于扩充关系数据模型的多媒介数据库系统，它以扩充关系为基础支持面向对象的主要特性。

then why can't we use XML as our first class data and programming model, given all the problems we learned the hard way with object-relational or OX mapping?

那么，考虑到我们在使用对象关系或 OX 映射的过程中发现的种种问题，为什么我们不能使用 XML 作为首选数据与编程模型呢？

Creating an object model that USES inheritance and corresponds to relational data can be somewhat confusing.

创建一个使用继承并对应于关系数据的对象模型可能有些不易理解。

The intelligence consultation system of OTC uses B/S portal frame construction, uses object relational model realization to model data knowledge;

非处方药智能咨询系统的开发采用B／S的框架结构，运用对象关系模型实现知识的建模；

Plus, you would have to write additional code in the middle tier to map the relational data to an Object data Model or an XML data Model.

另外，必须在中间层中编写更多代码，将关系数据映射到对象数据模型或XML数据模型。