基于DOM持久化的XML数据存储模型

作为一个在互联网上进行数据交换的国际标准,XML语言扮演着越来越重要的作用.伴随着XML语言的广泛使用，XML文档的数量也日益增多.为了有效地存储这些文档，设计了一个XML数据存储模型.这个模型是以DOM模型为基础来存储和更新XML数据；以XPath语言为基础来检索XML数据；采用关系数据库作为其底层的数据存储方式；利用持久化DOM技术实现.此模型充分利用了关系数据库的成熟技术，可以在不影响原数据库正常使用的基础上，把普通关系数据库扩展成XML数据库.

XML data-storing model based on persistent DOM

As an international standard of data exchange over Internet,XML has played an increasing(important) role.With using XML language widely,there exists a steady increase in the amounts of XML documents.For storing XML documents efficiently,a XML data-storing model had been designed.In the model,XML data are stored and updated based on DOM.XML data are queried based on Xpath language.Traditional relation database systems are used as under-layer data storing approach by employed persistent DOM technique.The model,making use of mature relational database technique adequately,can extend a general relational database system into a XML database without disturbing the daily works of the relational database.