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扩展XML-RL查询代数的设计与实现
The Design and Implementation of Extending XML-RL Query Algebra
【摘要】 XML的迅猛发展使得对XML查询语言的需求进一步地增强,XML查询语言已成为一个新的研究热点。扩展XML-RL查询代数的设计是为了支持具有面向对象特征的查询。其设计思想借鉴了Lore系统的查询代数。因此首先介绍了几种典型的XML查询代数,其次论述了扩展XML-RL查询代数包含的逻辑操作符和物理操作符的设计思想与具体实现算法。
【Abstract】 The swift development of the XML makes the need for XML query language enhance farther.XML query language has been a new hot research.The design of extending XML-RL query algebra is to support the querying with the object-oriented features.The design idea of the extending XML-RL query algebra comes from the query algebra of Lore system.So firstly this paper introduces some typical kinds of XML query algebra,then discusses the design and idiographic realization algorithm of logical operator and physical operator comprised the extending XML-RL query algebra.
- 【文献出处】 计算机工程与应用 ,Computer Engineering and Applications , 编辑部邮箱 ,2005年23期
- 【分类号】TP311.131
- 【被引频次】1
- 【下载频次】67