In a hybrid OLAP (HOLAP) system for investment portfolio analysis, why does combining ROLAP and MOLAP conceptually balance scalability with performance for both sparse and dense query patterns?

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Computer Science · Data Warehousing

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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MOLAP accelerates dense analytics while ROLAP manages sparse relational queries

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Answer 1

HOLAP prioritizes ETL over query optimization

Answer 2

Both use the same storage to avoid integration overhead

Answer 3

MOLAP accelerates dense analytics while ROLAP manages sparse relational queries

Answer 4

ROLAP handles all dense cubes in memory exclusively

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