Transform any aggregate function (SUM, AVG, COUNT, MIN, MAX) into a window function

Understand the key difference between GROUP BY and window aggregates

Calculate running totals, moving averages, and cumulative statistics

Create percentage calculations and ratio analysis

Use PARTITION BY for group-wise aggregations without collapsing rows

Optimize aggregate window function performance with proper indexing

Transform any aggregate function (SUM, AVG, COUNT, MIN, MAX) into a window function

Understand the key difference between GROUP BY and window aggregates

Calculate running totals, moving averages, and cumulative statistics

Create percentage calculations and ratio analysis

Use PARTITION BY for group-wise aggregations without collapsing rows

Optimize aggregate window function performance with proper indexing