

MCQOPTIONS
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1. |
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» B. The subtype primary key is assigned to each supertype. | |