CREATE TABLE table_203_478 (id DECIMAL, "week" DECIMAL, "date" TEXT, "opponent" TEXT, "result" TEXT, "attendance" DECIMAL)

when was their second win ?
SELECT "date" FROM table_203_478 WHERE "result" = 'w' AND "date" > (SELECT "date" FROM table_203_478 WHERE "result" = 'w' ORDER BY "date" LIMIT 1) ORDER BY "date" LIMIT 1
SELECT "date" FROM "table_203_478" WHERE "date" > (SELECT "date" FROM "table_203_478" WHERE "result" = 'w' ORDER BY "date" NULLS FIRST LIMIT 1) AND "result" = 'w' ORDER BY "date" NULLS FIRST LIMIT 1