SQLBolt: Learn SQL with simple, interactive examples(sqlbolt.com) |
SQLBolt: Learn SQL with simple, interactive examples(sqlbolt.com) |
One thing, though, there's a mistake in exercise 3. While it says "Find all the titles directed by John Lasseter", only a "SELECT * FROM movies" query will make it go green, while "SELECT title FROM movies" (as would be expected from the wording) does not.
Is this Open Source?