WHERE - IS NULL not working in SQLite?

Question

Here\'s a strange one:

I can filter on NOT NULLS from SQLite, but not NULLS:

This works:

SELECT *          


        

Answer 1

The problem could stem from how SQLite handles empty columns. For instance just because a column is empty does not mean it is NULL. Have you tested against ""?

SELECT * FROM project WHERE parent_id = ""

That query might return results.