Based on the comparing XML data model and conventional database model, and according to DTD, a method of establishing XML database system that combine conventional relative-database with XML was presented.

• 在比较XML数据模型和传统数据库模型优缺点的基础上,根据文件类型定义(DTD),提出了关系数据库与XML结合,组成XML数据库系统的方法。