CREATE TABLE table_204_522 (id NUMBER, "boat #" CLOB, "name" CLOB, "builder" CLOB, "laid down" CLOB, "launched" CLOB, "completed" CLOB, "fate" CLOB)

what other boat was completed on the same day as ha-201 ?
SELECT "name" FROM table_204_522 WHERE "name" <> 'ha-201' AND "completed" = (SELECT "completed" FROM table_204_522 WHERE "name" = 'ha-201')
SELECT "name" FROM "table_204_522" WHERE "completed" = (SELECT "completed" FROM "table_204_522" WHERE "name" = 'ha-201') AND "name" <> 'ha-201'