ER Model and Business Rules - Technical MCQs

Q1:

A subtype discriminator is which of the following?

A An attribute of the supertype whose values determine the subtype

B An attribute of the subtype whose values determine the supertype

C An attribute of the supertype whose values determine the supertype

D An attribute of the subtype whose values determine the subtype

ANS:A - An attribute of the supertype whose values determine the subtype

No answer description is available.