[SQL테스트]레스토랑 웨이터의 팁 분석

문제

https://solvesql.com/problems/tip-analysis/

코드

SELECT
  day, 
  time,
  ROUND(AVG(tip),2) AS avg_tip,
  ROUND(AVG(size),2) AS avg_size 
FROM tips
GROUP BY day, time
ORDER BY day,time

후기

아 너무 쉬운 문제인데...
tip값이랑 bill값이랑 헷갈려서 좀 걸렸다..