Question 1
Which of the following best describes the purpose of the 'selection' operation in relational algebra?
Question 2
Given a relation R(A, B, C) and a relation S(B, D), which of the following best describes the result of a natural join between R and S?
Question 3
Which of the following correctly represents the 'union' operation in relational algebra between two relations R and S?
Question 4
If a relation R(A, B, C) has a functional dependency A → B and B → C, which of the following is true about the relation?
Question 5
Which of the following best describes the result of performing a division operation in relational algebra between two relations R and S?
