Chongqing Poly Tower มีกี่ชั้นที่แตกต่างกัน?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many different numbers of floors are there for the Chongqing Poly Tower?It is not neccessary to use all the tables.
 table_23759976_1:  (floors [ VARCHAR ] building_ [ VARCHAR ] a_ [ VARCHAR) ]
SELECT COUNT(floors) FROM table_23759976_1 WHERE building_[a_] = "Chongqing Poly Tower"