What is the Margin of victory on oct 5, 1997?
CREATE TABLE "champions_tour_wins_45" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);
SELECT "margin_of_victory" FROM "champions_tour_wins_45" WHERE "date"='oct 5, 1997';