CREATE TABLE table_204_503 (id NUMBER, "year" NUMBER, "competition" CLOB, "venue" CLOB, "position" CLOB, "notes" CLOB)

where was this competitor 's first competition ?
SELECT "venue" FROM table_204_503 ORDER BY "year" LIMIT 1
SELECT "venue" FROM "table_204_503" ORDER BY "year" FETCH FIRST 1 ROWS ONLY