What is the Set 2 with a Total of 45–12, and a Set 3 with 15–2?
CREATE TABLE "pool_b" (
  "date" text,
  "score" text,
  "set_1" text,
  "set_2" text,
  "set_3" text,
  "total" text
);
SELECT "set_2" FROM "pool_b" WHERE "total"='45–12' AND "set_3"='15–2';