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A relation is in Boyce - Codd Normal Form ( BCNF ) if and only if it is in 3 N F and A )
A relation is in BoyceCodd Normal Form BCNF if and only if it is in and
A all nonkey attributes are determined by the entire primary key
B there are no nonkey attributes determined by another nonkey attribute
C every attribute is a candidate key
D every candidate key is a determinant
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