基于语义的XML模式到关系范式的转换算法  

Translating from XML Schema to relational normal form based on semantic constraint

作　　者：龚慧[1] 刘先锋[1] 

机构地区：[1]湖南师范大学数学与计算机科学学院,湖南长沙410081

出　　处：《重庆教育学院学报》2009年第3期57-61,共5页Journal of Chongqing College of Education

基　　金：国家自然科学基金(10571052);湖南省高校青年骨干教师资金;湖南省教育厅科研资金资助

摘　　要：通过XML键与函数依赖之间的关系,提出了一种新的基于XML键的从XML模式到关系范式的转换算法。该算法先得到泛关系,再将XML键转换为简化函数依赖,最后保持函数依赖的把泛关系分解为关系范式,并且该关系范式保存了XML的语义约束信息。This paper proposed anew algorithm for translating XML schema to relational normal form based on XML key through analyzing the relationship between keys and functional dependencies for XML. We derived the universal relation first and then translated XML keys into simplified functional dependencies. Finally, we kept functional dependency to divide the relation into relational normal form, which could capture the semantic constraints in XML document.

关 键 词：XML 关系范式 转换算法 XML键 函数依赖 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]