Logical Database Design - Study Mode
[#21] A null value is assigned when no other value applies.
Correct Answer
(A) True
[#22] A synonym is two or more attributes that have different names but the same meaning.
Correct Answer
(A) True
[#23] The primary key in a relation does not need to be underlined.
Correct Answer
(B) False
[#24] In a 1:M relationship, the primary key on the one side migrates to the many side to become the foreign key on the many side.
Correct Answer
(A) True
[#25] Normalization is a formal process for deciding which attributes should be grouped together in a relation.
Correct Answer
(A) True