I want to know the highest silver for total of 4 for poland and gold less than 1
CREATE TABLE "medal_table" (
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MAX("silver") FROM "medal_table" WHERE "total"=4 AND "nation"='poland' AND "gold"<1;