If I have a schema say R={A,B,C,D} and functional dependencies say {B->C, D->A} will my set of candidate keys be {B,D} or {BD}?
If I have a schema say R={A,B,C,D} and functional dependencies say {B->C, D->A} will
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If I have a schema say R={A,B,C,D} and functional dependencies say {B->C, D->A} will my set of candidate keys be {B,D} or {BD}?
If B were a candidate key, you’d have to be able to derive these functional dependencies from the ones given in the problem.
Can you do that?