Question 669 SQL automatically does not eliminate duplicate tuples in the results of queries because a) In aggregation function duplicates are useful b) Duplicate elimination is […]

Question 671 Which of the following statements is/are true w.r.t. Enterprise Resource Planning (ERP) ? (A) ERP automates and integrates majority of business processes. (B) ERP […]

Question 672 Consider a schema R(MNPQ) and functional dependencies M → N, P → Q. Then the decomposition of R into R​ 1​ (MN) and R​ […]