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对于主键只由一个属性组成的关系,如果它是第一范式关系,则它是否一定也是第二范式关系?

问答题
2022-03-16 02:25
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正确答案

是的。因为如果一个关系的主键只由一个属性组成,则此关系中一定不会存在部分依赖关系。


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