XML与关系数据库的函数依赖比较

Comparison of Functional Dependency of XML and Relational Database

函数依赖分析对于XML数据有着与其在关系数据库中同等重要的意义。通过实例对关系数据库和基于DTD模式的XML数据的函数依赖分析方法和过程作出比较,对XML数据与关系数据库间的转换及函数依赖在两者中的保持与传播有参考价值。

The functional dependency analysis has equally important significance to XML data as to the relational database. By instances, the article compares the methods and processes of functional dependency analysis in relational databases and XML based on DTD model. It has reference value for the technique of conversion between XML documents and relational databases. And it is also benefit to maintenance and dissemination of functional dependencies between the couple.