What is Outcome, when Surface is "Carpet (I)", and when Date is "15 November 1993"?
CREATE TABLE "singles_23_15_8" (
  "outcome" text,
  "date" text,
  "tournament" text,
  "surface" text,
  "opponent_in_the_final" text,
  "score_in_the_final" text
);
SELECT "outcome" FROM "singles_23_15_8" WHERE "surface"='carpet (i)' AND "date"='15 november 1993';