9. Which of the following transactions preserves the consistency of the database that has the constraint "A must be less
Posted: Thu May 26, 2022 9:08 am
9. Which of the following transactions preserves the consistency of the database that has the constraint "A must be less than B"? (Assume A and B are integers -- not necessarily positive.) O a) A: A + 2; B = B + 3 b) A:= 2*A; B = 3*B c) A: B - 1; B O d) A: A - 1; B := A + B = A + B