Along with the increasing development of Internet-based business application, XML (eXtensible Markup Language) has emerged as the standard format for data expression and exchange, which leads to requirements involving XML data management.

• 随着基于Internet商业应用的迅速发展,XML(eXtensible Markup Language, 可扩展标记语言)已经成为Internet上数据表示和数据交换的标准格式,提出了对XML数据管理的要求。