1 votes 1 votes Databases databases + – set2018 asked Jul 26, 2017 set2018 256 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 0 votes 0 votes R={A,B,C,D} AB->C B->D $AB^{+}$ = ABCD, AB is CK but it's not even in 2NF because B->D is partial dependency. Hence (d) should be correct option! Manu Thakur answered Jul 26, 2017 • selected Oct 23, 2017 by set2018 Manu Thakur comment Share Follow See all 0 reply Please log in or register to add a comment.