Q:Question:by a relational database technique (ROLAP), by a multidimensional database technique (MOLAP), or by a hybrid database technique (HOLAP). a. Briefly describe each implementation technique. b. For each technique, explain how each of the following functions may be c. implemented: i. The generation of a data warehouse (including aggregation) ii. Roll-up iii. Drill-down iv. Incremental updating d. Which implementation techniques do you prefer,A:Answer:OLAP : Online Analytical Processing is a class of ...