#shorts Window Functions in 60 Seconds 🕦 #database #coding #sql #education #postgresql

Powerful way to perform calculations across a set of rows that are related to the current row.

The biggest difference between a window function and a regular aggregate function (like SUM or AVG) is that window functions do not collapse rows.

While a GROUP BY query turns multiple rows into one summary row, a window function keeps every row visible and simply adds the calculated result alongside them.

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23 мая 2026 г. 11:30:27

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