术语 | fully functional dependent |
释义 | fully functional dependent 全函数相关 In database, a collection of attributes A of a relation R is fully functionally dependent on another collection of attributes B of relation R if A is functionally dependent on the whole of B but not on any subset of B. 数据库中,关系R的一属性组A全函数相关于关系R的另一属性组B的条件是:A函数相关于 B的整体,而非B的任一子集。 |
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