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基于泛关系的多表间最佳连接算法_
31 3 2005 2
Vol.31 3 Computer Engineering February 2005
· · 2005 A TP301.6
1 2
(1. 3 210007 2. 100039)
Double_Dij
Arithmetic About the Best Link Based on Universal Relation
1 2
BEN Chengyan , WANG Jianxin
1.Postgraduate Team 3, ICE, PLAUST, Nanjing 2100072.Institute of China Electronic System Engineering CompanyBeijing 100039
AbstractUniversal relation is a popular theory about database in recent years. Many researchs about the theory and technique of universal relation are
going deeply into the domain of database gradually. In this article, an arithmetic, named Double_Dij, is brought forward which is based on the theory of
universal relation. The arithmetic will solve the problem of the best link among tables.
Key wordsUniversal relation Best link; Database
1
A
B E
F
a
A
A 2 C 1
2 E
B C B 2 F E
1 1
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