MCQOPTIONS
Saved Bookmarks
| 1. |
Consider the relation X(P, Q, R, S, T, U) with the following set of functional dependencies F = { {P, R} → {S,T}, {P, S, U} → {Q, R} } Which of the following is the trivial functional dependency in F+ is closure of F |
| A. | {P,R}→{S,T} |
| B. | {P,R}→{R,T |
| C. | {P,S}→{S} |
| D. | {P,S,U}→{Q |
| Answer» D. {P,S,U}→{Q | |