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.
Bu egzersiz
PostgreSQL Summary Stats and Window Functions
kursunun bir parçasıdırEgzersiz talimatları
- Return the year, medals earned, and minimum medals earned so far.
Uygulamalı interaktif egzersiz
Bu örnek kodu tamamlayarak bu egzersizi bitirin.
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;