Question 800 A functional dependency of the form x → y is trivial if A y ⊆ x B y ⊂ x C x ⊆ y […]

Question 802 Which one of the following statements about normal forms is FALSE? A BCNF is stricter than 3NF B Lossless,dependency preserving decomposition into BCNF is […]

Question 803 Which of the following is a fundamental operation in relational algebra? A Set intersection B Natural Join C Assignment D None of the above […]