Question: What is the record when Danilo Pereira was the opponent?
SQL: SELECT "Record" FROM "2-17936984-2" WHERE "Opponent" = 'Danilo Pereira';

Question: Which event had Edson Claas Vieira as an opponent?
SQL: SELECT "Event" FROM "2-17936984-2" WHERE "Opponent" = 'Edson Claas Vieira';

Question: Which method was used when Rafael Cavalcante was the opponent?
SQL: SELECT "Method" FROM "2-17936984-2" WHERE "Opponent" = 'Rafael Cavalcante';

Question: Which method was used when Alessio Sakara was the opponent?
SQL: SELECT "Method" FROM "2-17936984-2" WHERE "Opponent" = 'Alessio Sakara';

Question: Who is the opponent when the record is 3-8?
SQL: SELECT "Opponent" FROM "2-17936984-2" WHERE "Record" = '3-8';