Meaning of OLAP (Online Analytical Processing)

Simple definition

OLAP allows fast, multidimensional analysis of large datasets, often in cubes.

Used in BI dashboards and reporting for slicing and dicing data.

A retailer compares sales by region, time, and product category in an OLAP cube.

For repeated, multidimensional queries with high performance needs.

Slice, dice, drill-down, roll-up, and pivot.

They require preprocessing and may struggle with unstructured data.

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