Assume a relation R with the schema R(A, B, C, D, E). The primary key of R is A. Which of the following is correct for R?
A. R is in 1NF only
B. R is in both 1NF and 2NF
C. R is in 3NF
D. R is in BCNF
Answer:B
Assume a relation R with the schema R(A, B, C, D, E). The primary key of R is A. Which of the following is correct for R?
A. R is in 1NF only B. R is in both 1NF and 2NF C. R is in 3NF D. R is in BCNF