一种轻型关系型数据源包装器的设计  

A Lightweight Wrapper System for Relational Data Sources

作　　者：李效东[1] 顾毓清[1] 

机构地区：[1]中国科学院软件所,北京100080

出　　处：《计算机科学》2002年第7期25-30,共6页Computer Science

摘　　要：包装器是自治异构数据源集成系统中的重要组成部分.随着与XML[1]有关的标准不断制定和完善,越来越多的数据被用XML表示,同时必须注意的一个事实是,目前和在一个可以预见的未来,大部分应用系统,甚至是新的基于web的应用系统,仍然将关系数据库系统作为数据存储和查询的首选.XML is emerging as a de facto standard for data representation and exchange on the Web. However,currently and in the forseeable future, most data will continue to be stored in and retrived from relational database systems. It is mainly decided by the reliabilty,maturity,efficience and lots of tools with RDBMS. Many challenges exist as converting flat,normalized relational data into hierachical,unnormalized XML data. Based on XML technologies,the paper addresses a novel and lightweight approach to translate XML queries into SQL requests and transforms the re-tured tuples into XML representation in the context of data integration system. A wrapper for relational soruces was developed based on the approach. The paper is an important part of the research on integrated query processing over hetergeneous data sources.

关 键 词：关系数据库系统 数据存储 数据查询 数据集成系统 轻型关系型数据源包装器 设计 

分 类 号：TP311.132[自动化与计算机技术—计算机软件与理论]