The functionaldependencytheory has a great influence over the design and application of relational database.
FD理论对于关系数据库的设计和应用产生了深刻的影响。
2
The article put forward the attribute dependencytheory based on functionaldependencytheory, elaborated the definition of the attribute dependency theory, and proved related theorem.
以函数依赖理论为基础,提出了属性依赖理论,阐述了属性依赖的有关定义,证明了相关定理;
3
The introduction of approximate theory of rough functionaldependency will accelerate the development of knowledge discovery for rough relational database and extend its research field.