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Consider the relation X(P, Q, R, S, T, U) with the following set of functional dependencies
Q. 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}
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the relation X(P, Q, R, S, T, U) with the following set of fu...
A functional dependency X -> Y is trivial if Y is a subset of X.
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Consider the relation X(P, Q, R, S, T, U) with the following set of functional dependenciesQ. 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}Correct answer is option 'C'. Can you explain this answer?
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