Question 308 Which of the following statements is false? A Any relation with two attributes is in BCNF B A relation in which every key has […]

Question 309 Let R = {A, B, C, D, E, F} be a relation schema with C → F, E → A, EC → D and […]

Question 310 From the following instance of a relation scheme R(X,Y,Z), we can conclude that: X Y Z 1 1 1 1 1 0 2 3 […]

Question 311 The statement that is executed automatically by the system as a side effect of the modification of the database is A Backup B Trigger […]