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ROLLUP & CUBE: Real-World

Module: Aggregate Functions & Grouping

Powers executive reports with subtotals and grand totals: sales by region→country→city with totals at each level, revenue by year→quarter→month with period totals.

Financial Reporting

Executive financial statements with department, category, and grand totals

Financial Reporting

SELECT department, category, SUM(amount) AS total FROM expenses GROUP BY ROLLUP(department, category);

CFO reviews expenses at multiple levels: by category within department, department totals, and company grand total in single report.

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