Fuzzy null embedded join dependency is defined.
定义了模糊空值嵌入连接依赖。
The axiom of fuzzy null value join dependency is introduced and its availability is proved.
给出模糊空值连接依赖的公理系统,并且进行了有效性证明。
Join dependency in relational data theory is not seldom seen during database systems designing.
本文阐明关系数据规范理论中的连接依赖在设计数据库系统时并不少见。
In this paper the nature of the join dependency is analyzed. and its causing conditions and processing method are presented.
剖析了连接依赖的本质,并提出其产生的条件和处理的方法。
This paper introduces embedded multivalued dependency, generalized join dependency, subset dependency under fuzzy null value circumstances and corresponding axiom.
介绍了模糊空值环境下的嵌入多值依赖、广义连接依赖、子集依赖,及其相应的公理系统。
It has exactly the same kind of cyclic dependency as the anti-pattern in Figure 19, now between the join and the fork.
它与图19中的循环依赖关系的类型完全相同,但现在涉及的是join和fork。
More children would increase the dependency ratio until they were old enough to join the Labour force.
虽然生育更多的孩子,在他们达到工作年龄加入劳动力之前,“抚养比率”会上升。
This cyclic dependency between the join and the decision, and the join and the fork (where the join must be executed before the decision or fork and vice versa) is the reason why a deadlock occurs.
join和decision以及join和fork之间的这种循环依赖关系(其中join必须在decision或fork之前执行,反之亦然)便是发生死锁的原因。
This paper gives a dissolution algorithm on relational data model system which has a lossless join and remains function dependency as well.
给出了关系数据模式分解中,既有无损连接性又保持函数依赖的分解算法,并用该算法指导应用软件的开发工作。
More children would increase the dependency ratio until they were old enough to join the workforce , but reduce labour shortages in the long term.
孩子多了,在他们长大到有劳动能力之前会增加抚养比率,但是从长远的眼光看会减少劳动力短缺。
More children would increase the dependency ratio until they were old enough to join the workforce , but reduce labour shortages in the long term.
孩子多了,在他们长大到有劳动能力之前会增加抚养比率,但是从长远的眼光看会减少劳动力短缺。
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