Last active
August 26, 2017 16:58
-
-
Save gabrielgatu/924fca732bc7d0cb2e0d7dbdf7af284e to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
SELECT "female_artists".name AS artist_name, MAX("recording".length), "recording".name /* Qui voglio selezionare più di una colonna, tra qui adoperare una MAX sulla lunghezza delle canzoni */ | |
FROM "artist_credit_name" | |
INNER JOIN ( | |
SELECT "artist".* | |
FROM "artist" | |
INNER JOIN "gender" ON "artist".gender = "gender".id | |
WHERE "gender".name = 'Female' | |
) AS "female_artists" ON "artist_credit_name".artist = "female_artists".id | |
INNER JOIN "recording" ON "artist_credit_name".artist_credit = "recording".artist_credit | |
WHERE "recording".length IS NOT NULL | |
GROUP BY "female_artists".id /* Qui vorrei fare una group by sull'id e non sul nome */ |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment