Which key uniquely identifies each record in a database table?

Options

  • A. Foreign Key
  • B. Primary Key
  • C. Alternate Key
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. Primary Key

Detailed Explanation

Explanation: A Primary Key uniquely identifies every record in a table. It cannot contain NULL values or duplicate values.