基于如何优化XML路径表达式查询的技术探究

Technology Research Based on How to Optimize the XML Path Expression Query

现阶段，XML文档的查询是根据路径表达来导航的，针对XML查询语言而言，对于其数据库查询优化的关键是XML路径表达式。本文作者通过对现有的路径表达式查询中几种优化技术的分析研究，提出了在XML语言查询中的一些重要问题，并根据其主要的技术特点提出了自己的观点，旨在提高对XML路径表达式查询技术的优化。

In this stage,XML documents are based on path expression queries to navigate,and query language for XML,the database query optimization for the XML path expression is the key.The author on the current path expression query optimization technology in the analysis of several proposed XML language query in a number of important issues and major technical features in accordance with its own point of view put forward to improve the XML path expression query optimization technology.