|
|
| select * from tracks limit 10
|
| select * from track_artists limit 10
|
| select * from artists limit 10
|
|
|
|
|
|
|
| SELECT
|
| t.rowid,
|
|
|
|
|
| t.name AS track_name,
|
| t.popularity AS tracks_popularity,
|
| t.track_number AS track_number,
|
| t.duration_ms AS duration,
|
|
|
|
|
| ar.rowid AS artist_rowid,
|
|
|
| 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
|
|
|
| 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; |
