基于XML schema的XML文档在关系数据库中的存储  

XML storage in relation database based on XML schema

作　　者：赵尔平[1] 李浩[1] 雒伟群[1] 党红恩[1] 王聪华[1] 

机构地区：[1]西藏民族学院信息工程学院,陕西咸阳712082

出　　处：《西北师范大学学报（自然科学版）》2010年第1期43-46,共4页Journal of Northwest Normal University(Natural Science)

基　　金：教育部科学技术研究重点项目(208137)

摘　　要：分析了P_schema存储方法存在的问题,提出了改进的P_schema存储方法;通过引入DOM树,使嵌套结构等价于DOM树节点的父子关系,用filiation表存储节点的父子关系;由于多次引用元素结构信息相同,所以存储在同一关系中,用其外键表示引用关系,解决了P_schema存储方法中的一些难题,如嵌套和多次引用元素存储问题.An improved storage method of P_schema is brought forword by analysing problems existing in storage method of P_schema. By aid of DOM tree, nesting structure is equal to paternity of node, filiation table is used to store paternity of node. Because structure information of an multi-citing element is same, they are stored in same relation table and its foreign key is used to denote citing relation. Some difficult problems in storage method of P_schema, such as, storage of nesting element and an multi-citing element are resolved by the method.

关 键 词：XML SCHEMA 改进的P_schema 关系存储 

分 类 号：TP311.131[自动化与计算机技术—计算机软件与理论]