-- The next comment line has no text after the '--' prefix.
--
-- The next comment line starts with a space.
 -- x, y, z...

INSERT INTO users(first_name, last_name) VALUES('Juergen', 'Hoeller');
-- This is also a comment.
INSERT INTO
users(first_name, last_name)
VALUES( 'Sam'     -- first_name
      , 'Brannen' -- last_name
);--