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.
All