Join 3 tables in SQLite database

Question

I have 3 tables in SQLite database:

Songs:

_id | name | length | artist_id (foreign key) | album_id (foreign key)

Answer 1

Try this select, may by the Artists is more important than others, so the Songs come trough Artists and Albums from Songs.

SELECT
  Songs._id AS song_id,
  Songs.name AS song_name, 
  Songs.length, 
  Songs.artist_id AS artist_id, 
  Artists.name AS artist_name, 
  Songs.album_id AS album_id, 
  Albums.name AS album_name
FROM 
 Artists
 LEFT JOIN Songs ON Songs.artist_id = Artists._id
 LEFT JOIN Albums ON Songs.album_id = Albums._id

Also if there is no entry in Songs belonging to a particular artist or no entry in Albums belonging to a particular song, you will still get the artist entry thanks to the LEFT JOIN. If you would like to return only artists with songs and albums, use JOIN instead.