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An entity in A is associated with at most one entity in B. An entity in B, however, can be associated with any number (zero or more) of entities in A.

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An entity in A is associated with at most one entity in B. An entity in B, however, can be associated with any number (zero or more) of entities in A.

(a) One-to-many

(b) One-to-one

(c) Many-to-many

(d) Many-to-one

The question was posed to me in a job interview.

The doubt is from Constraints topic in division Database Systems Design and Implementation of Database Management

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Correct choice is (d) Many-to-one

Explanation: Here more than one entity in one set is related to one one entity in other set.

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