CREATE TABLE table_204_712 (id NUMBER, "rank" NUMBER, "athlete" CLOB, "nationality" CLOB, "time" CLOB, "notes" CLOB)

which athlete had the fastest time for the 20km ?
SELECT "athlete" FROM table_204_712 ORDER BY "time" LIMIT 1
SELECT "athlete" FROM "table_204_712" ORDER BY "time" FETCH FIRST 1 ROWS ONLY