มีเตียงขนาดคิงไซส์กี่ห้อง?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many rooms have a king bed?It is not neccessary to use all the tables.
 rooms:  roomid [ text]  roomname [ text]  beds [ number]  bedtype [ text]  maxoccupancy [ number]  baseprice [ number]  decor [ text] 
SELECT COUNT(*) FROM rooms WHERE bedtype = "King"