Exploring rating by country and gender
Now you will investigate the average rating of customers aggregated by country and gender.
Latihan ini adalah bagian dari kursus
Data-Driven Decision Making in SQL
Latihan interaktif praktis
Cobalah latihan ini dengan menyelesaikan kode contoh berikut.
SELECT
___ -- Select country, gender and rating
___
___
FROM renting AS r
___ customers AS c -- Use the correct join
___;