ในปี 2010 มีการแข่งขันจำนวนเท่าใด ?ไม่จำเป็นต้องใช้ตารางทั้งหมด
what number of competitions were held in 2010 ?It is not neccessary to use all the tables.
 table_203_781:  id [ number]  "year" [ number]  "competition" [ text]  "venue" [ text]  "position" [ text]  "notes" [ text] 
SELECT COUNT("competition") FROM table_203_781 WHERE "year" = 2010