งาน IFL Oakland มีกี่รอบ?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
How many rounds did the IFL Oakland event have?It is not neccessary to use all the tables.
 table_31703:  "Res." [ text]  "Record" [ text]  "Opponent" [ text]  "Method" [ text]  "Event" [ text]  "Round" [ real]  "Location" [ text] 
SELECT SUM("Round") FROM table_31703 WHERE "Event" = 'ifl: oakland'