[1]巩九洲,冯百明. 基于关系代数的异构关系数据集成研究[J].计算机技术与发展,2014,24(09):77-80.
　GONG Jiu-zhou,FENG Bai-ming. Research on Heterogeneous Data Integration Based on Relational Algebra[J].,2014,24(09):77-80.
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 基于关系代数的异构关系数据集成研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
24
期数:
2014年09期
页码:
77-80
栏目:
智能、算法、系统工程
出版日期:
2014-09-10

文章信息/Info

Title:
 Research on Heterogeneous Data Integration Based on Relational Algebra
文章编号:
1673-629X（2014）09-0077-04
作者:
 巩九洲; 冯百明
 西北师范大学 计算机科学与工程学院
Author(s):
 GONG Jiu-zhou; FENG Bai-ming
关键词:
 ; 异构; 关系代数; 数据集成; 横向; 纵向
Keywords:
 ; heterogeneous; relational algebra; data integration; horizontal; vertical
分类号:
TP301
文献标志码:
A
摘要:
 网络上存在着大量的可用数据，且多是异构的。由于多种原因，用户很难获取自己需要的数据。数据集成技术为用户提供了一个统一的访问途径，以便获取分散在不同数据源上的数据。文中在对异构关系数据分析的基础上，结合实践中的例子，提出了基于关系代数的异构关系数据集成方法。把关系数据集成分为横向集成和纵向集成，给出了相关的集成理论和方法。将该方法应用于异构关系数据集成中，结果证明是有效的。
Abstract:
 There are a mass of available data on the network,and the majority are heterogeneous. Due to various reasons,it is difficult for users to obtain the data they needed. Data integration technology provides an unified access view for users,in this way they can access scattered data in different data sources conveniently. Based on the analysis of heterogeneous relational data and combined with some ex-amples in practice,the method of heterogeneous relational data integration is presented based on relational algebra. Relational data integra-tion is classified into horizontal integration and vertical integration,putting forward correlative integrated theory and method. The method is applied in the heterogeneous relational data integration,which is proved to be effective.

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更新日期/Last Update: 2015-04-01