Edmonton Oilers ร่างผู้เล่นกี่คน?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many players were drafted by the Edmonton Oilers?It is not neccessary to use all the tables.
 table_2840500_2:  (player [ VARCHAR ] nhl_team [ VARCHAR) ]
SELECT COUNT(player) FROM table_2840500_2 WHERE nhl_team = "Edmonton Oilers"