title: I can't create a foreign key: missing right parenthesis error
body: <pre><code>CREATE TABLE hotel_reservation(
      hotel_code VARCHAR2(5),
      room_type  VARCHAR2(75), CONSTRAINT check_room_type CHECK(room_type LIKE 'DELUXE' or room_type LIKE 'SUPERIOR' or room_type LIKE 'MASTERS SUITE') NOT NULL, 
      room_id number(3), CONSTRAINT fk_room_id FOREIGN KEY(room_id) REFERENCES rooms(room_id) NOT NULL
  );
  </code></pre>
  
  <p>it keeps saying missing right parenthesis but I don't see anything missing.</p>