摘要
探讨了样板依赖的性质,明确了样板依赖与连接依赖之间的关系。证明了全样板依赖的等价类构成幺半群,进而证明了全样板依赖类与全连接依赖类是本质上相同的两个依赖类。
The paper, at first, discusses the nature of the template dependency and then makes a clear understanding of the relationship between the template dependency and the joined dependency. It also proves that the equivalent class of full template dependencies constitutes a monoid. Consequently, it proves that the class of full joined dependencies is essentially identical with the class of full template dependence.
出处
《辽宁工学院学报》
1996年第2期82-85,共4页
Journal of Liaoning Institute of Technology(Natural Science Edition)
关键词
样板依赖
连接信号
幺半群
关系数据库
数据依赖
template dependency
joined dependency
implication
isomorphism
monoid semigroup