Database - Logical Database Design - Discussion

Discussion :: Logical Database Design - General Questions (Q.No.14)

14. 

When mapping a supertype/subtype relationship which of the following is true?

[A]. The supertype primary key is assigned to each subtype.
[B]. The subtype primary key is assigned to each supertype.
[C]. There is no link between the supertype/subtype entities.
[D]. There is no primary key/foreign key relationship between a supertype/subtype.

Answer: Option A

Explanation:

No answer description available for this question.

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