Question: write the answer by the keyboard d) Discuss with an example why re-organising the Attributes of a Dimension into a Hierarchy of Levels supports the

write the answer by the keyboard

d) Discuss with an example why re-organising the Attributes of a Dimension into a Hierarchy of Levels supports the querying of a Cube. [4] e) Suggest two reasons why we might choose ROLAP (Relational OLAP) for Cube Storage? [4]

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