UFC 109 รอบสูงสุดคือรอบไหน?ไม่จำเป็นต้องใช้ทุกโต๊ะ
What is the highest round for UFC 109?It is not neccessary to use all the tables.
 table_name_92:  (round [ INTEGER ] event [ VARCHAR) ]
SELECT MAX(round) FROM table_name_92 WHERE event = "ufc 109"