How many were in attendance for a result of D, at H venue, and Arsenal as an opponent?
CREATE TABLE "match_details" (
  "date" text,
  "league_position" text,
  "opponents" text,
  "venue" text,
  "result" text,
  "score_f_a" text,
  "attendance" real
);
SELECT "attendance" FROM "match_details" WHERE "result"='d' AND "venue"='h' AND "opponents"='arsenal';