No non-prime attribute in the table is functionally dependent on a part (proper subset) of a candidate key.
不存在非主属性对任一候选键滴部分函数依赖。
Following analysing the traits of the prime attribute in relation schema, an algorithm based on matrix to solve the prime problem is proposed in this paper.
本文从分析主属性在关系模式中的特点出发,在模式矩阵及其分类的基础上,给出了一个基于矩阵的关系模式主属性的判定算法。
Following analysing the traits of the prime attribute in relation schema, an algorithm based on matrix to solve the prime problem is proposed in this paper.
本文从分析主属性在关系模式中的特点出发,在模式矩阵及其分类的基础上,给出了一个基于矩阵的关系模式主属性的判定算法。
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