Lecture

OLAP Queries and Optimizations

In course

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Description

This lecture covers OLAP queries, a combination of SQL and spreadsheets for data analysis, including examples of comparisons, multidimensional ratios, ranking, and custom consolidation. It also explains roll-up, pivoting, drill-down operations, and the CUBE operator for computing super-aggregates. The instructor discusses optimizations such as bitmap indexes, join indexes, and star joins to enhance query performance.

Instructor

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Official source

https://mediaspace.epfl.ch/media/0_3nu8n442

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Ontological neighbourhood

Computer engineering

Databases: Relational databases, Data warehouses

Computer programming: Compilers

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