CREATE TABLE table_204_554 (id NUMBER, "rank" NUMBER, "name" CLOB, "nation" CLOB, "time" CLOB, "speed" NUMBER, "note" CLOB)

which country rank last ?
SELECT "nation" FROM table_204_554 ORDER BY "rank" DESC LIMIT 1
SELECT "nation" FROM "table_204_554" ORDER BY "rank" DESC FETCH FIRST 1 ROWS ONLY