CREATE TABLE "performances_by_nation" (
  "rank" real,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);

Question: Which rank has 0 bronze and 2 silver?
SQL: SELECT MIN("gold") FROM "performances_by_nation" WHERE "bronze"=0 AND "silver"<2;

Question: How much silver does the rank have that has gold smaller than 4, and a total of 1 and a rank larger than 6?
SQL: SELECT SUM("silver") FROM "performances_by_nation" WHERE "gold"<4 AND "total"=1 AND "rank">6;

Question: Which rank has a more than 0 silver, 4 bronze, and a total smaller than 10?
SQL: SELECT SUM("rank") FROM "performances_by_nation" WHERE "silver">0 AND "bronze"=4 AND "total"<10;

Question: How much gold does the tank have that has 3 silver and more than 3 bronze?
SQL: SELECT COUNT("gold") FROM "performances_by_nation" WHERE "silver"=3 AND "bronze">3;

Question: What is the total number that 0 silver?
SQL: SELECT COUNT("total") FROM "performances_by_nation" WHERE "silver"<0;