首页 | 本学科首页   官方微博 | 高级检索  
     检索      

XML函数依赖
引用本文:黄长远,武传宝.XML函数依赖[J].齐齐哈尔大学学报(自然科学版),2006,22(3):56-58.
作者姓名:黄长远  武传宝
作者单位:1. 天津大学电信学院,天津,300072
2. 齐齐哈尔职业学院,黑龙江,齐齐哈尔,161006
摘    要:函数依赖在关系数据库中起着基本的作用,尤其是用在完整性约束和数据库设计方面。近年来已定义了XML上的函数依赖。本文采用了一种新的定义方式,即在树元组上定义函数依赖,同时给出了函数依赖的推理规则。

关 键 词:推理规则
文章编号:1007-984X(2006)03-0056-03
收稿时间:2005-03-16
修稿时间:2005年3月16日

XML functional dependencies
HUANG Chang-yuan,WU Chuan-bao.XML functional dependencies[J].Journal of Qiqihar University(Natural Science Edition),2006,22(3):56-58.
Authors:HUANG Chang-yuan  WU Chuan-bao
Institution:1.Electronical Information Institute ,Tianjin University,Tianjin 300072,China;2.Qiqihar Occupation College,Heilongjing Qiqihar 161005,China
Abstract:Functional dependencies play a fundamental role in relational databases where it was used in integrity en forcement and in database design. Similarly, these constraints will play a fundamental role in XML and functional de pendencies in XML have been defined. In this paper we present a kind definition of functional dependencies in XML based on tree unary and at the same time We also give reference rules about the implication of FD in XML and prove their validity.
Keywords:XML
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号