A candidate key for the relation in a Database Management System can be defined as:
A. The subset of the set of fields in a key which is a unique identifier for a tuple
B. A set of fields that uniquely identifies a tuple according to the key constant
C. Two tuples which have identical values in all the fields
D. A field of relation is a unique identifier for a tuple
Answer:B
A candidate key for the relation in a Database Management System can be defined as:
A. The subset of the set of fields in a key which is a unique identifier for a tuple B. A set of fields that uniquely identifies a tuple according to the key constant C. Two tuples which have identical values in all the fields D. A field of relation is a unique identifier for a tuple