In a relational database, the modeling of a One to one relationship is possible with a
minimum of how many tables?
A.
one
B.
two
C.
three
D.
two per relationship
E.
one per direction of each relationship
Explanation:
One to one A one to one relationship exists when for every value of a
there is one and only one corresponding value of b, and for every value of b there is
one and only one corresponding value of a. One to one relationships are modeled
within a single table.