CREATE TABLE table_204_77 (id NUMBER, "number" CLOB, "builder" CLOB, "type" CLOB, "date" CLOB, "works number" NUMBER, "notes" CLOB)

name a train that was built after ss & iw 's .
SELECT "number" FROM table_204_77 WHERE "date" > (SELECT "date" FROM table_204_77 WHERE "builder" = 'ss&iw') ORDER BY "date" LIMIT 1
SELECT "number" FROM "table_204_77" WHERE "date" > (SELECT "date" FROM "table_204_77" WHERE "builder" = 'ss&iw') ORDER BY "date" FETCH FIRST 1 ROWS ONLY