基于关系数据库的对象数据管理方法研究

面向对象方法在许多领域中已经得到了广泛应用 .对象描述方法可以很方便地描述领域中具有复杂结构的数据 ,但这些复杂数据的存储问题还有待妥善解决 .在数据存储管理方面 ,关系数据库系统一直处于主导地位 .本文提出了一种将对象模型和关系模型有机结合在一起的方法 .该方法将数据存储功能从领域数据对象中分离出来 ,采用专门的对象管理器来处理复杂的对象数据与关系数据库的交互问题 .该方法已经被用于海洋传播模型数据库管理系统的设计开发中 ,并取得较好的效果

Reserch of Object-Oriented Data Manage Methodology Based on Relational Data Model

An objected-oriented approach has been applied in many area. But there is a problem about persistance store of the complex data object. On the other hand, the relational databases have been dominating the area of data processing in the past decade. This paper present our approah to the symbiosis of the OO and relational data models, which is built into MDMS, a Ocean Propagation Model Object data Management system based on the OO data model and relational database. The object-manager is used to control the data access to relational database, and the data access function is separated from the area data object. The methodology present here is very efficient, as has been proved by the success of MDMS.