On the first day of Microsoft Build 2026 in San Francisco, Microsoft announced the public preview of Azure HorizonDB, a fully managed PostgreSQL-compatible database rebuilt from the ground up for ...
-- 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 * ...
Read data from above file into dataframes (df1 and df2). Display number of partitions in df1. Create a new dataframe df3 from df1, along with a new column salary, and keep it constant 1000 append df2 ...
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