What is the att-cmp-int that has 12 for the gp-gs and 174.3 as the avg/g?
CREATE TABLE "passing" (
  "name" text,
  "gp_gs" text,
  "effic" real,
  "att_cmp_int" text,
  "avg_g" real
);
SELECT "att_cmp_int" FROM "passing" WHERE "gp_gs"='12' AND "avg_g"=174.3;