Given the following relation instance R(x, y, z): x y z 1 4 2 1 5 3 1 6 3 3 2…
GATE · 2000 · CS · Question 2 subparts
Given the following relation instance R(x, y, z):
x y z
1 4 2
1 5 3
1 6 3
3 2 2
Which of the following functional dependencies are satisfied by this instance?
- A.
XY -> Z and Z -> Y
- B.
YZ -> X and Y -> Z
- C.
YZ -> X and X -> Z
- D.
XZ -> Y and Y -> X
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