Research on Unified interface of Heterogeneous database

At present, different technologies were used to handle heterogeneous database in system development. It´s easy for the application developers to access single database, however, the technology and code complexity make a big challenge to handle data of systems which obtain multiple data sources, no matter what the application patterns base on C/S B/S or the mixture of both. This paper offers a perspective on the framework and its realization of handling multiple data sources under a unified way based on the years of application system development experience. To achieve purpose of accessing multiple data sources with unified messages, some specific types of messages for operating heterogeneous database were defined by XML language, and other relevant technologies were introduced to implement this framework.