Minimum country medals by year
So far, you've seen MAX and SUM, aggregate functions normally used with GROUP BY, being used as window functions. You can also use the other aggregate functions, like MIN, as window functions.
This exercise is part of the course
PostgreSQL Summary Stats and Window Functions
Exercise instructions
- Return the year, medals earned, and minimum medals earned so far.
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
WITH France_Medals AS (
SELECT
Year, COUNT(*) AS Medals
FROM Summer_Medals
WHERE
Country = 'FRA'
AND Medal = 'Gold' AND Year >= 2000
GROUP BY Year)
SELECT
___,
___,
___ OVER (ORDER BY ___ ASC) AS Min_Medals
FROM France_Medals
ORDER BY Year ASC;