SQL RANK
SQL
https://www.codewars.com/kata/58094559c47d323ebd000035/train/sql
SELECT p.id,
p.name,
COUNT(s.sale) sale_count,
RANK () OVER (
ORDER BY COUNT(s.sale) DESC
) sale_rank
FROM people p JOIN sales s ON p.id=s.people_id
GROUP BY p.id, p.name
11
11
10
10
10
