CREATE TABLE table_204_850 (id NUMBER, "name" CLOB, "railway" CLOB, "series" CLOB, "maker" CLOB, "dates" CLOB, "drive" CLOB, "wheel arrangement" CLOB, "weight" CLOB, "power" CLOB, "notes" CLOB)

which locomotive weighs the least ?
SELECT "name" FROM table_204_850 ORDER BY "weight" LIMIT 1
SELECT "name" FROM "table_204_850" ORDER BY "weight" FETCH FIRST 1 ROWS ONLY