Consider the relation π(π,π, π , π, π,π) with the following set ofβ¦
GATE Β· 2015 Β· CS Β· Set 3 Β· Computer Science & IT
Consider the relation π(π,π, π , π, π,π) with the following set of functional dependencies
πΉ = {
Β Β Β Β Β Β Β Β {π, π } β {π, π},
Β Β Β Β Β Β Β Β {π, π,π} β {π, π }
}
Which of the following is the trivial functional dependency in πΉ+, where πΉ+ is closure of F ?
- A.
{π, π } β {π, π}
- B.
{π, π } β {π , π}
- C.
{π, π} β {π}
- D.
{π, π,π} β {π}
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