What is the least silver when the total is more than 2, bronze is 3, gold is more than 0, and rank is 1?
CREATE TABLE "world_championships_total_medals" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MIN("silver") FROM "world_championships_total_medals" WHERE "total">2 AND "bronze"=3 AND "gold">0 AND "rank"='1';