What is the sum of totals for FA Cup values of 0?
CREATE TABLE "top_scorers" (
  "player" text,
  "position" text,
  "premier_league" real,
  "fa_cup" real,
  "league_cup" real,
  "uefa_cup" real,
  "total" real
);
SELECT SUM("total") FROM "top_scorers" WHERE "fa_cup"<0;