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Which of the following is TRUE?

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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

The question was posed to me in a national level competition.

My doubt stems from Materialized Views topic in section Query Processing Techniques of Database Management

1 Answer

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Correct answer is (c) Every relation in BCNF is also in 3NF

The best I can explain: A relational database table is often described as “normalized” if it is in the Third Normal Form because most of the 3NF tables are free of insertion, update, and deletion anomalies.

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