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Add another valid solution for question 5 #4

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Add another valid solution for question 5 #4

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11 changes: 10 additions & 1 deletion solutions/5.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -2,4 +2,13 @@ SELECT bands.name AS 'Band Name'
FROM bands
LEFT JOIN albums ON bands.id = albums.band_id
GROUP BY albums.band_id
HAVING COUNT(albums.id) = 0;
HAVING COUNT(albums.id) = 0;

/*
Also a valid solution:

SELECT bands.name AS 'Band Name'
FROM bands
LEFT JOIN albums ON bands.id = albums.band_id
WHERE albums.id IS NULL;
*/