Q.

Which of the following is TRUE?

A. every relation in 2nf is also in bcnf
B. a relation r is in 3nf if every non-prime attribute of r is fully functionally dependent on every key of r
C. every relation in bcnf is also in 3nf
D. no relation can be in both bcnf and 3nf
Answer» C. every relation in bcnf is also in 3nf
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