CREATE TABLE table_204_248 (id DECIMAL, "rank" DECIMAL, "nation" TEXT, "gold" DECIMAL, "silver" DECIMAL, "bronze" DECIMAL, "total" DECIMAL)

what is the number of countries that had no gold medals ?
SELECT COUNT("nation") FROM table_204_248 WHERE "gold" = 0
SELECT COUNT("nation") FROM "table_204_248" WHERE "gold" = 0