M76****48 2021-06-05 09:56 开发者_运维问答决定了什么事不改变，也就是不想别人劝，山东怪杰
Is it correct to represent a foreign key on a conceptual data model, or should I only introduce fore开发者_StackOverflowign keys when I am doing the relational model?Experts are divided on this one.He
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