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Question

What are drill-down and roll-up capabilities in OLAP systems?

a.

Features for slicing and dicing data

b.

Methods for combining dimensions

c.

Techniques for displaying data on a flat screen

d.

Capabilities for moving to lower or higher hierarchical levels of aggregation

Posted under Data Warehousing and OLAP

Answer: (d).Capabilities for moving to lower or higher hierarchical levels of aggregation Explanation:Drill-down and roll-up capabilities in OLAP systems refer to moving to lower or higher hierarchical levels of aggregation.

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Q. What are drill-down and roll-up capabilities in OLAP systems?
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