Analyzing average ratings
Prepare a table for a report about the national preferences of the customers from MovieNow comparing the average rating of movies across countries and genres.
Questo esercizio fa parte del corso
Data-Driven Decision Making in SQL
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
-- Augment the records of movie rentals with information about movies and customers
SELECT *
FROM ___
LEFT JOIN ___
ON ___
LEFT JOIN ___
ON ___;