Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) DBMS Integrity Constraints and Normal Form Functional Dependency
Comprehension Passage
Direction: Answer question based on the problem statement given below:
An organization needs to maintain database having five attributes A, B, C, D, E. These attributes the functionally dependent on each other for which functionally dependency set F is given as: F : (A → BC, D → E, BC → D, A → D}. Consider a universal relation R(A, B, C, D, E) with functional dependency set F. Also all attributes are simple and take atomic values only.Minimal cover F’ of functional dependency set F is
1
F’ = {A → B, A → C, BC → D, D → E}
2
F’ = {A → BC, B → D, D → E}
3
F’ = {A → B, A → C, A → D, D → E}
4
F’ = {A → B, A → C, B → D, C → D, D → E}