CREATE TABLE "world_championships_total_medals" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);

Question: How many silver medals for germany with a bronze count more than 0?
SQL: SELECT MAX("silver") FROM "world_championships_total_medals" WHERE "nation"='germany' AND "bronze">0;

Question: How many gold medals when the total is more than 1 and 18 silver?
SQL: SELECT MIN("gold") FROM "world_championships_total_medals" WHERE "total">1 AND "silver"=18;

Question: How many bronze medals has a total less than 3 with a silver less than 1 and gold more than 1?
SQL: SELECT AVG("bronze") FROM "world_championships_total_medals" WHERE "total"<3 AND "silver"<1 AND "gold">1;