Explain the distinctions among the terms primary key, candidate key, and super key.

Primary key: The primary key can be identified as the key that is most suitable for the unique identification of the tuple or row from the database among all the candidate keys.

Example: Customer id is the primary key in the database.

Candidate key: You can describe the candidate key as the minimum number of attributes needed to identify a tuple or row uniquely.

Example: The bank account number is an applicant