OODB

基本解释

OODB,as the third generation database management system,is required new theories, methods and techniques.
作为第三代数据库的OODB,要求是新的理论方法和技术。
In this paper,a new query method which is based on generalization hierarchy in Object-Oriented Database(OODB) is proposed.
针对面向对象的数据库（OODB）的概括继承结构提出一种新的查询途径，它建立在一种对象表示的基础上。
It will provide a good basis for realizing the OODB management system and persistent programming language , which were embedded in C + +.
通过持久类模板,可在C++中清晰地嵌入持久语义,很好地管理持久对象,并方便持久对象和挥发对象间的相互转换。
Because the object-oriented data model lacks formal basis, query optimization cannot improve the performance of OODB essentially.
由于OODB的数据模型缺乏很好的形式化基础，查询优化不能从本质上提高OODB的性能。
Expounded the details of three basic parts: client access of DDE, STEP-XML resolution, OODB management and concurrence control.
对客户端动态产品数据交换接口、STEP-XML解析、OODB管理及并发控制等三个关键部分的软件实现作了具体的描述,完成了相关部分的源代码编写。