Which of the following statements is correct?
a. All relations in 3NF are also in BCNF
b. For any relation schema, there is a dependency-preserving decomposition into 3NF
c. All relations in 2NF are also in BCNF
Answer: B
Which of the following statements is correct?
a. All relations in 3NF are also in BCNF
b. For any relation schema, there is a dependency-preserving decomposition into 3NF
c. All relations in 2NF are also in BCNF