Multiple choice

How many types of keys are there in 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 is the correct answer. There are seven types of keys in relational database. These are :-1.) Primary key2.) Candidate key3.) Super key4.) Foreign key5.) Alternate key6.) Artificial key7.) Composite keySo this is the correct answer.

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