______________ is a set of one or more attributes taken collectively to uniquely identify a record.
A. Primary Key
B. Foreign key
C. Super key
D. Candidate key
Answer:C
______________ is a set of one or more attributes taken collectively to uniquely identify a record.
A. Primary Key B. Foreign key C. Super key D. Candidate key
Explanation: Foreign key creates a relationship between two relations. Super key is the superset of all the keys in a relation. A candidate key is used to identify tuples in a relation.