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1种利用邻接矩阵寻找候选键的方法

A NEW METHOD USING ADJACENCY MATRIX FOR FINDING CANDIDATE KEY
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摘要 确定候选键是关系数据库理论研究中非常重要的问题。文章提出1种利用邻接矩阵表示函数依赖,通过矩阵运算求解关系模式候选键的新方法,该方法可以直观快捷的求出所有候选键。 The method of finding candidate key is a very important theory in relation database system.In this paper,it proposes an efficient algorithm for discovering candidate key.This algorithm expresses the function dependency by adjacency matrix and discoveries candidate key by the matrix operation.
出处 《内蒙古农业大学学报(自然科学版)》 CAS 北大核心 2011年第2期244-246,共3页 Journal of Inner Mongolia Agricultural University(Natural Science Edition)
关键词 邻接矩阵 候选键 依赖关系 Adjacency matrix candidate key function dependency
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