Question

__________________ ensures that each row is uniquely identified by the primary key, which means that a proper search for an existing tuple (row) will always be successful. a. System integrity b. Referential integrity c. Entity integrity d. Database integrity

Answer 1

Solution:

Database integrity ensures that each row is uniquely identified by the primary key, which means that a proper search for an existing tuple (row) will always be successful.

Thus the required answer is D