摘要
由于传统的Key约束理论难以适应XML的需求,XML Key约束已成为当前的研究热点。本文从XML文档变化检测的问题入手,提出基于多实例的Key约束概念,并以此作为构建高效XML文档变化检测算法的基础。
The constraint theory developed for traditional structured databases no longer applies to XML data. Thus, many efforts focus on the key constraints for XML. In the paper, motivated by the problem encountered in the evaluation of change detection for XML documents, we present the notion of multi-instance-based key, which can be fundamental to a highly efficient change detection algorithm.
出处
《计算机工程与科学》
CSCD
2004年第2期74-76,103,共4页
Computer Engineering & Science
基金
国家973资助项目(G1999032703)
