Numbering Olympic athletes by medals earned
Row numbering can also be used for ranking. For example, numbering rows and ordering by the count of medals each athlete earned in the OVER clause will assign 1 to the highest-earning medalist, 2 to the second highest-earning medalist, and so on.
This exercise is part of the course
PostgreSQL Summary Stats and Window Functions
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
SELECT
-- Count the number of medals each athlete has earned
___,
___ AS Medals
FROM Summer_Medals
GROUP BY Athlete
ORDER BY Medals DESC;