Inner Joins - a perfect match
Let's use the Chinook database, which consists of tables related to an online store, to understand how inner joins work. The album table lists albums by multiple artists. The track table lists individual songs, each with a unique identifier, but also, an album_id column that links each track to an album.
Let's find the tracks that belong to each album.
Deze oefening maakt deel uit van de cursus
Introduction to SQL Server
Oefeninstructies
- Perform an inner join between
albumandtrackusing thealbum_idcolumn.
Praktische interactieve oefening
Probeer deze oefening eens door deze voorbeeldcode in te vullen.
SELECT
track_id,
name AS track_name,
title AS album_title
FROM track
-- Complete the join type and the common joining column
___ JOIN album on track.___ = album.___;