Computer Science · Data Warehousing and OLAP
Which of the following statements correctly describe the various OLAP operations performed on a multidimensional data cube? I. Roll-Up involves aggregation by climbing up a concept hierarchy, such as moving from a daily sales view to a monthly or annual view. II. Slice creates a sub-cube by selecting a subset on two or more dimensions of the multidimensional data. III. Drill-Down allows users to navigate from summary data to more detailed data, moving from higher levels to lower levels in a hierarchy. IV. Pivot rotates the data axes in the view to provide an alternative orientation or presentation of the multidimensional data. Choose the most appropriate answer from the options given below:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1I, II and III Only
- 2II, III and IV Only
- 3I, II and IV Only
- 4I, III and IV Only✓
Correct answer
I, III and IV Only
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