0 votes 0 votes A relation $R=${${A,B,C,D,E,F}$} is given with following set of functional dependencies: $F=${${A\rightarrow B, AD\rightarrow C,B\rightarrow F,A\rightarrow E}$} Which of the following is candidate key? $A$ $AC$ $AD$ None of these Others ugcnetcse-june2006-paper2 + – go_editor asked Mar 27, 2020 edited May 20, 2021 by soujanyareddy13 go_editor 289 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
0 votes 0 votes $A^+ = \{A , B, E, F\} $ $AC+ = \{A , B, C, E, F\}$ $AD+ = \{A, B, C, D, E, F\} $ Hear, Using AD we are able to reach all other attributes so AD is the candidate key. Ans: C) AD Bhargav D Dave 6 answered Nov 14, 2020 Bhargav D Dave 6 comment Share Follow See all 0 reply Please log in or register to add a comment.