异构型数据库网络及其分布式访问

A Heterogeneous Database Network and Its Distributed Access

在大型工业部门中,往往存在许多地理上分隔的由不同类型DBMS管理的异构型数据库系统。建立这些异构型数据库的网络,实现它们之间的互连通信与分布式访问,这是分布式数据库研究的一个重要方面。本文根据分层技术介绍了一个体系结构框架,说明了集成数据库的分层数据模型,讨论了实现透明的分布式访问所需的网络应用层服务元素。

In large industrial organizations, there often exist many heterogeneous databases managed by different types of DBMS and dispersed geographically. It is an important research area to establish the communication between and tc have the distributed access to these databases. In this paper, an architectural framework for connecting the heterogeneous databases is introduced based on layering techniques. The layered data models of integrated database are described. The application service elements which are necessary for providing transparent distributed access to the databases are finally discussed.