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《Journal of Chuxiong Teachers's College》 1997-03
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THE METHOD OF REMOVING THE REDUNDANT SCHEME IN THE PEOCESS OF RELATIONAL DATABASE DESIGN

Xu Qingsheng(Department of ComputerScience, Chuxiongteachers'college, CHUXIONG 657000 )  
Removing the redundant scheme is the one of important problems that must bethought in database design. In this paper,we firstdivide the redundant shemes in its lev-el of redundancy into threedegrees of redundant schemes: absolute redundant scheme,relativeredundant scheme and functional dependenceis redundant scheme, anddescrib itmathmatically. We second discuss the properties of theredundant scheme,and give meth-ods of removing all of redundant schemes with the complexity of tec methods essentiallybeing polynomial.
【CateGory Index】: TP311.13
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 Xu Qingsheng and Zhou Xingren(Department of Computer Science,Yunnan University, Kunming 650091);THE BCNF NORMALIZATION METHOD OF RELATIONAL DATABASE SCHEME:HAVING A LOSSLESS JOIN AND PRESERVATION OF DEPENDENCIES[J];JOURNAL OF SOFTWARE;1994-09
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 LI Li-ping,MA Wen-ge,LIANG Yong (Department of Computer,Liaoning Institute of Technology,Jinzhou 121001,China);A Thorough Analysis of XML[J];Journal of Liaoning Technical University (Natural Science Edition);2002-02
2 WEN Hui ying, ZOU Xian min, XU Ji hong, ZHONG Sheng long (College of Traffic and Communications, South China University of Technology, Guangzhou 510641,China);Development of XML and It's Application in the Modern Electronic Logistics[J];Industrial Engineering Journal;2002-04
3 Song Suyun (Department of Computer Engineering, Guangdong Industry Technical College, Guangzhou 510300, China);XML Technique Application in Electronic Commerce Information Security[J];Journal of Guangdong Industry Techical College;2004-03
4 ZHANG Jian-Qing, LIU Xu-Dong, and HUAI Jin-Peng (Department of Computer Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083);Research and Implementation of XML-Based Key Management[J];Journal of Computer Research and Development;2003-01
5 CHEN Di Ling and HUAI Jin Peng (School of Computer Science & Engineering, Beihang University, Beijing 100083);Research and Implementation of a Mechanism for Web Services Secure Communications[J];Journal of Computer Research and Development;2004-04
6 Wang Zhong Chen Xiaoou(State Key Laboratory of Word Processing Technology,Institute of Computer Science and Technology,Peking University,Beijing100871);Study of Data Exchange and Access Based on XML[J];Computer Engineering and Applications;2001-24
7 LI Yuanyi (Ningbo Dahongying Vocational & Technical College, Ningbo 315175);Hierarchical Decomposition for XML Schemas and DTD Design[J];Computer Engineering;2005-03
8 JIN Xin,CHEN Jiaxun(College of Information Science and Technology,Donghua University,Shanghai 200051,China);Approach to Ontology-based Information Exchange in Supply Chain[J];Computer Applications;2003-01
9 Liu Yong Xu Lin(College of Computer,Sichuan University,Chengdu 610065);Realization of Classified Encryption in SSL Connection[J];Computer & Digital Engineering;2005-05
10 FU Hai-ying,LI Hui,WANG Yu-min;An Overview of XML and XML-Related Security[J];Application Research of Computers;2004-02
【Secondary References】
Chinese Journal Full-text Database 1 Hits
1 LUO Jizhou, LI Jianzhong School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China;A survey of research on XML compression techniques[J];Journal of Frontiers of Computer Science & Technology;2008-03
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 CUI HENGZHTJ(Jilin University);SIMPLE KEY AND SIMPLE NORMAL FORM[J];Chinese Journal of Computers;1985-04
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