Ricky Ponting เล่นในช่วงเวลาใด?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
During what period did Ricky Ponting play?It is not neccessary to use all the tables.
 table_21100348_10:  (period [ VARCHAR ] player [ VARCHAR) ]
SELECT period FROM table_21100348_10 WHERE player = "Ricky Ponting"