File size: 2,770 Bytes
9a1f607 | 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 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 | -- track name
select * from tracks limit 10
select * from track_artists limit 10
select * from artists limit 10
-- join
SELECT
t.rowid,
-- t.id,
-- t.album_rowid,
t.name AS track_name,
t.popularity AS tracks_popularity,
t.track_number AS track_number,
t.duration_ms AS duration,
-- ta.artist_rowid,
-- ta.track_rowid,
ar.rowid AS artist_rowid,
-- GROUP_CONCAT(ar.name, ', ') AS artists_names,
ar.popularity AS artists_popularity,
al.name AS album_name,
al.popularity AS album_popularity,
al.release_date AS album_release_date
FROM tracks t
JOIN track_artists ta ON t.rowid = ta.track_rowid
JOIN artists ar ON ta.artist_rowid = ar.rowid
JOIN albums al ON t.album_rowid = al.rowid
--GROUP BY t.rowid
LIMIT 15
----
ATTACH DATABASE 'spotify_tracks_ranking.sqlite3' AS newdb;
CREATE TABLE newdb.tracks_ranking AS
SELECT
t.rowid AS track_rowid,
t.name AS track_name,
t.popularity AS tracks_popularity,
GROUP_CONCAT(ar.name || ' (' || ar.popularity || ')') AS artists,
ar.popularity AS artists_popularity,
al.name AS album_name,
al.popularity AS album_popularity,
al.release_date AS album_release_date
FROM tracks t
JOIN track_artists ta ON t.rowid = ta.track_rowid
JOIN artists ar ON ta.artist_rowid = ar.rowid
JOIN albums al ON t.album_rowid = al.rowid
GROUP BY t.rowid
ORDER BY tracks_popularity DESC, album_release_date ASC;
COMMIT;
----
----
BEGIN;
ATTACH DATABASE 'spotify_tracks_ranking.sqlite3' AS newdb;
CREATE TABLE newdb.tracks_ranking AS
SELECT *
FROM new_table_name
ORDER BY tracks_popularity DESC, album_release_date ASC;
COMMIT;
DETACH DATABASE newdb;
COMMIT;
CREATE TABLE newdb.test AS
SELECT * FROM new_table_name LIMIT 1;
SELECT COUNT(*) FROM new_table_name;
----
SELECT COUNT(*) FROM new_table_name;
PRAGMA database_list;
SELECT COUNT(*) FROM newdb.tracks_ranking;
SELECT COUNT(*) FROM newdb.tracks_ranking;
SELECT
t.name AS track_name,
t.popularity AS tracks_popularity,
al.name AS album_name,
al.release_date AS albums_release_date,
ar.name AS artists_name,
ar.popularity AS artists_popularity,
GROUP_CONCAT(ag.genre, ', ') AS artist_genres
FROM tracks t
JOIN albums al ON t.album_rowid = al.rowid
JOIN track_artists ta ON t.rowid = ta.track_rowid
JOIN artists ar ON ta.artist_rowid = ar.rowid
LEFT JOIN artist_genres ag ON ar.rowid = ag.artist_rowid
GROUP BY t.rowid, ar.rowid
LIMIT 100; |