How many podiums associated with 1 vuelta and over 7 tours?
CREATE TABLE "most_grand_tour_podiums" (
  "name" text,
  "tour" real,
  "giro" real,
  "vuelta" real,
  "total" real
);
SELECT COUNT("total") FROM "most_grand_tour_podiums" WHERE "vuelta"=1 AND "tour">7;