retagged by
363 views
1 1 vote

1 Answer

Position:
Show:

Related questions

0 0 votes
2 answers 2 answers
3.5k
3.5k views
dhairya asked Jun 18, 2016
3,549 views
R (A, B, C ,D ,E )F={ A->B, BC- D, D->BC, B->E, B->A }Check whether BD is C.Key or S.key . Also find the candidate key.
1 1 vote
1 answers 1 answer
1.6k
1.6k views
radha gogia asked Jul 30, 2015
1,591 views
Since candidate key is a minimal key and it is a proper subset of a super-key , then how is it that for a candidate key ,its proper subset is not a super key ?
1 1 vote
1 1 answer
98
98 views
GO Classes asked Sep 8
98 views
Consider the relation schema $R(A,B,C,D,E,F)$ with$F=\{BE \to C,\ B \to F,\ D \to F,\ AEF \to B,\ A \to E\}$Which of the following is a candidate key of $R$?$ACD$ $AD$ $F...