基于XML的异构数据库间联合使用

Union use among heterogeneous databases based on XML

分析了目前异构数据库系统的存在问题和XML在解决异构数据库联合使用问题中的优势,并在此基础上提出了一个基于XML的异构数据库间联合使用的设想和实现方案。通过实践着重研究和验证了如何构造系统的XML元数据,以及如何实现基于XML的异构数据库的数据转换和数据透明访问等一系列问题。

This paper analyses the problems existing in the heterogeneous database system at present and the advantage of XML in solving the problem of union use among heterogeneous databases. On the foundation of the analysis, a method to design and perform the union use among heterogeneous database based on XML is proposed. Through actual application, a series of problems are researched and proved which include how to construct the systematic XML meta-data and realize the heterogeneous database's data convertion and transparent visiting.