Multiple choice

How many types of keys are there in a relational database?

  1. 9

  2. 7

  3. 8

  4. 6

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This answer is correct. There are seven types of keys in a relational database. These are :- 1.) Primary key 2.) Candidate key 3.) Super key 4.) Foreign key 5.) Alternate key 6 .) Artificial key 7.) Composite key So, this answer is correct.

Keep practicing — related questions