This repository has been archived by the owner on Apr 11, 2021. It is now read-only.
forked from KATRINAHIGH/sql-khan-academy-challenges
-
Notifications
You must be signed in to change notification settings - Fork 0
/
challenge6_playlist_maker.sql
78 lines (67 loc) · 4.65 KB
/
challenge6_playlist_maker.sql
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
/*We've created a database of songs and artists, and you'll make playlists
from them in this challenge. */
CREATE TABLE artists (
id INTEGER PRIMARY KEY AUTOINCREMENT,
name TEXT,
country TEXT,
genre TEXT);
INSERT INTO artists (name, country, genre)
VALUES ("Taylor Swift", "US", "Pop");
INSERT INTO artists (name, country, genre)
VALUES ("Led Zeppelin", "US", "Hard rock");
INSERT INTO artists (name, country, genre)
VALUES ("ABBA", "Sweden", "Disco");
INSERT INTO artists (name, country, genre)
VALUES ("Queen", "UK", "Rock");
INSERT INTO artists (name, country, genre)
VALUES ("Celine Dion", "Canada", "Pop");
INSERT INTO artists (name, country, genre)
VALUES ("Meatloaf", "US", "Hard rock");
INSERT INTO artists (name, country, genre)
VALUES ("Garth Brooks", "US", "Country");
INSERT INTO artists (name, country, genre)
VALUES ("Shania Twain", "Canada", "Country");
INSERT INTO artists (name, country, genre)
VALUES ("Rihanna", "US", "Pop");
INSERT INTO artists (name, country, genre)
VALUES ("Guns N' Roses", "US", "Hard rock");
INSERT INTO artists (name, country, genre)
VALUES ("Gloria Estefan", "US", "Pop");
INSERT INTO artists (name, country, genre)
VALUES ("Bob Marley", "Jamaica", "Reggae");
CREATE TABLE songs (
id INTEGER PRIMARY KEY AUTOINCREMENT,
artist TEXT,
title TEXT);
INSERT INTO songs (artist, title)
VALUES ("Taylor Swift", "Shake it off");
INSERT INTO songs (artist, title)
VALUES ("Rihanna", "Stay");
INSERT INTO songs (artist, title)
VALUES ("Celine Dion", "My heart will go on");
INSERT INTO songs (artist, title)
VALUES ("Celine Dion", "A new day has come");
INSERT INTO songs (artist, title)
VALUES ("Shania Twain", "Party for two");
INSERT INTO songs (artist, title)
VALUES ("Gloria Estefan", "Conga");
INSERT INTO songs (artist, title)
VALUES ("Led Zeppelin", "Stairway to heaven");
INSERT INTO songs (artist, title)
VALUES ("ABBA", "Mamma mia");
INSERT INTO songs (artist, title)
VALUES ("Queen", "Bicycle Race");
INSERT INTO songs (artist, title)
VALUES ("Queen", "Bohemian Rhapsody");
INSERT INTO songs (artist, title)
VALUES ("Guns N' Roses", "Don't cry");
/*Select the title of all the songs by the artist named 'Queen'.*/
SELECT title FROM songs WHERE artist = "Queen";
/*Select the name of all of the artists from the 'Pop' genre.*/
Select name FROM artists WHERE genre = "Pop";
/*Select the title of all the songs from the 'Pop' artists. It should
use IN on a nested subquery that's based on your previous query.*/
SELECT title FROM songs
WHERE artist IN (
SELECT name FROM artists
WHERE genre = "Pop");