CREATE TABLE table_204_311 (id NUMBER, "rank" NUMBER, "nation" CLOB, "gold" NUMBER, "silver" NUMBER, "bronze" NUMBER, "total" NUMBER)

how many nations have a total of 1 medal won ?
SELECT COUNT("nation") FROM table_204_311 WHERE "total" = 1
SELECT COUNT("nation") FROM "table_204_311" WHERE "total" = 1