Q. The subset of a super key is a candidate key under what condition? (Solved)
1. no proper subset is a super key
2. all subsets are super keys
3. subset is a super key
4. each subset is a super key
- a. no proper subset is a super key
1. no proper subset is a super key
2. all subsets are super keys
3. subset is a super key
4. each subset is a super key