Given R (X, A, Z, B) and A → {B, Z}, what is the candidate key(s) of R?
QUESTION:
“Given R (X, A, Z, B) and A → {B, Z}, what is the candidate key(s) of R?”
ANSWER:
The only candidate key of R is {A, X}.
QUESTION:
“Given R (X, A, Z, B) and A → {B, Z}, what is the candidate key(s) of R?”
ANSWER:
The only candidate key of R is {A, X}.
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