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Logical Database Design - Technical MCQs

Q1:

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.

ANS:A - The supertype primary key is assigned to each subtype.

No answer description is available