基于DAI中间件的异构数据库集成

Heterogeneous database integration based on DAI middleware

在研究异构数据库中数据集成的基本原理基础上,提出了数据库集成模型实现策略,即在异构数据库之间构建了一个中间层软件——"虚拟数据库系统",经授权认证的合法用户通过"虚拟数据库系统"提供的标准访问接口及统一数据格式对环境中各种分布的、异构的、不同种类的数据资源进行动态访问和集成。

This paper brings forward a strategy of Heterogeneous database integration model implementation based on researching database integration principle, which is to build a middle layer software that is virtual database system among heterogeneous data sources. User with authorization could dynamic access and integrate all sorts of distributed, heterogeneous data resources througli standard access interfaces and uniform data format supplied by virtual database system.