Solved

Surrogate Primary Keys Are Especially Helpful When There Is No

Question 38

Multiple Choice

Surrogate primary keys are especially helpful when there is no key.

A) primary
B) natural
C) foreign
D) composite

Related Questions

Q4: The default comparison condition for the subtype

Q33: A is a primary key created by

Q36: Generalization is based on grouping unique characteristics

Q38: The entity supertype contains common characteristics, and

Q40: keys work with primary keys to properly

Q49: Implementing overlapping subtypes requires the use of

Q55: Entity supertypes and subtypes are organized in

Q56: Specialization is the top-down process of identifying

Q66: At the implementation level, the supertype and

Q69: The _ specifies whether each entity supertype