Database: superhero (difficulty: simple)
Question: Rank heroes published by J. R. R. Tolkien by their height in descending order.
SQL: SELECT superhero_name, height_cm, RANK() OVER (ORDER BY height_cm DESC) AS HeightRank FROM superhero INNER JOIN publisher ON superhero.publisher_id = publisher.id WHERE publisher.publisher_name = 'J. R. R. Tolkien'