คะแนนสะสมรวมสำหรับทุกทีมที่เล่นใน Discovery Channel หรือไม่ไม่จำเป็นต้องใช้ทุกโต๊ะ
Cumulative point total for all teams playing on the Discovery Channel?It is not neccessary to use all the tables.
 table_57284:  "Rank" [ real]  "Name" [ text]  "Nationality" [ text]  "Team" [ text]  "Points" [ real] 
SELECT COUNT("Points") FROM table_57284 WHERE "Team" = 'discovery channel'