基于C_Schema的XML模式到关系模式的映射  

Mapping from XML schema to relational schema based on C_Schema

作　　者：曾庆玲[1] 朱新华[1] 吴丽萍[1] 曹庆花[1] 

机构地区：[1]广西师范大学计算机科学与信息工程学院,广西桂林541004

出　　处：《计算机工程与设计》2011年第5期1710-1713,共4页Computer Engineering and Design

基　　金：国家自然科学基金项目(10761002);广西科学基金项目(0832101)

摘　　要：为解决复杂XML文档中的递归元素、多命名空间信息、重复结构、面向未来可扩展元素和属性等关系模式的映射,针对P_Schema和B_Schema在XML模式到关系模式映射中的不足,提出了一种基于C_Schema的XML模式到关系模式的映射方法。C_Schema对P_Schema和B_Schema进行了继承和扩展,将上述复杂信息提取出来生成新类型,并在其相应的父元素中保留对新类型的引用。C_Schema与XML Schema模式是一种等价关系,根据一定的映射规则,将C_Schema直接映射为关系模式,实现将XML文档在数据库中的存储。依据该模式可实现各种基于模式的复杂XML文档到关系数据库的存储与还原,可广泛应用于各种基于XML的行业标准中。To slove the relational schema mapping in the complicated XML documents, such as recursive element, multi-namespace information, repetitive structure, future-oriented extensible elements and attributes, aimed to shortcoming of P_Schema and B_Schema in mapping from XML to relational schema a new mapping method based on C_Schema is put forward. According to the deficiency of P_Schema and B_Schema in mapping from XML schema to relational schema, C_Schema that inherits and expands P_Schema and B_ Schema extracts the complicated data to generate new types and keeps the reference in their corresponding parent-elements. Finally, the XML documents can be stored into database according C_Schema with some mapping rules. C_Schema can be applied into different XML-based industry to effectively store the complicated XML documents.

关 键 词：XML模式 P_Schema B_Schema C_Schema 关系模式 

分 类 号：TP311.132.3[自动化与计算机技术—计算机软件与理论]