CREATE TABLE Rooms (RoomId TEXT, roomName TEXT, beds INT, bedType TEXT, maxOccupancy INT, basePrice INT, decor TEXT)
CREATE TABLE Reservations (Code INT, Room TEXT, CheckIn TEXT, CheckOut TEXT, Rate FLOAT, LastName TEXT, FirstName TEXT, Adults INT, Kids INT)

Find the number of the name of rooms booked by some customers whose first name contains ROY, rank X-axis in descending order.
SELECT roomName, COUNT(roomName) FROM Reservations AS T1 JOIN Rooms AS T2 ON T1.Room = T2.RoomId WHERE FirstName LIKE '%ROY%' GROUP BY roomName ORDER BY roomName DESC
SELECT "roomName", COUNT("roomName") FROM "Reservations" AS "T1" JOIN "Rooms" AS "T2" ON "T1"."Room" = "T2"."RoomId" WHERE "FirstName" LIKE '%ROY%' GROUP BY "roomName" ORDER BY "roomName" DESC NULLS LAST