一个对象-关系型DBMS的数据存储组织策略

The storage strategy for an object relational DBMS

提出了一个对象关系DBMS的数据存储组织策略 .给出了其底层存储的具体实现 ,其中包括类 ,对象的存储方案 .给出并分析比较了类层次的 3种存储策略 ,确定了将每个类映射成一张表 (包含该类继承的属性 )作为本系统实现的策略 .论述了大对象等的分散存储策略 .结果表明 ,本系统在增强对象处理能力的同时 。

This paper describes the storage strategy for an Object Relational Database Management System (ORDBMS). The implementation of its physical storage is proposed, including the storage strategies for class and object. It brings forward and analyses three kinds of storage strategies for class hierarchy, and adopts 'Mapping each class to one table which includes the attributes inherited from the parent class' as the strategy for the system implementation. In the end, LOB′s decentralization storage strategy is also introduced. The result indicates that the system can meet the demand for fast searching of data while it strengthens the capability for managing the complicated object.