0 votes 0 votes Consider a relation schema $R=(A, B, C, D, E, F)$ on which the following functional dependencies hold : $A \rightarrow B$ $B, C \rightarrow D$ $E \rightarrow C$ $D \rightarrow A$ What are the candidate keys of $R$ ? $AE$ and $BE$ $AE, BE$ and $DE$ $AEF, BEF$ and $BCF$ $AEF, BEF$ and $DEF$ Unknown Category ugcnetcse-dec2018-paper2 databases database-normalization + – Arjun asked Jan 2, 2019 • edited Jan 30 by makhdoom ghaya Arjun 1.2k views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes $(AEF)^+=\left\{A,E,B,C,D,F \right \}$ $(BEF)^+=\left\{B,E,C,D,A,F \right \}$ $(DEF)^+=\left\{D,E,C,A,B,F\right \}$ $AEF,BEF,DEF$ are the minimal superkeys. So, $(D)$ should be the answer Shobhit Joshi answered Jan 3, 2019 Shobhit Joshi comment Share Follow See all 0 reply Please log in or register to add a comment.