Beginner
Database Management Systems
Q22 / 100
What is a composite key?
Correct! Well done.
Incorrect.
The correct answer is B) A primary key made up of two or more columns together uniquely identifying each row
B
Correct Answer
A primary key made up of two or more columns together uniquely identifying each row
Explanation
A composite (compound) key uses multiple columns to form a unique identifier. Example: in an enrollment table, (student_id, course_id) together form the primary key.
Progress
22/100