A relation resulting from a weak entity has a non-composite primary key when the identifying relationship is:
A)Optional on both sides
B)1:1
C)1:M
D)M:N

Question

Quizplus · Accepted Answer

A weak entity's relation will have a non-composite primary key when the identifying relationship is 1:1, as the weak entity will be uniquely identified by its own attribute(s) in combination with the primary key of the strong entity it is related to.

A Relation Resulting from a Weak Entity Has a Non-Composite