It analyzes the mapping between the RDBS and XML,then proposes a new schema of heterogeneous database integration based on XML and presents implementation method of main parts in details.

• 重点分析了XML与关系数据库之间的映射,提出了一种以XML作为中间件的异构数据库集成方案,并对其中的主要环节给出了具体实现。