-- 1. CTE BÁSICA — Ventas por región WITH ventas_por_region AS ( SELECT region, COUNT(*) as total_ventas, SUM(monto) as total_monto, AVG(monto) as promedio_monto FROM ventas GROUP BY region ) SELECT * ...
Learn how to use Excel's new GROUPBY and PIVOTBY functions through five real-world examples, ranging from easy to hard. This ...
Abstract: The iceberg cubing problem is to compute the multidimensional group-by partitions that satisfy given aggregation constraints. Pruning unproductive computation for iceberg cubing when ...
Your SSD has a hidden setting that trades storage space for dramatically longer lifespan. Learn how SSD overprovisioning ...
This file contains a polished set of SQL analyses using baseball-related data.