CREATE TABLE table_4456 ("Shipyard" CLOB, "Laid down" CLOB, "Launched" CLOB, "Commissioned" CLOB, "Fleet" CLOB, "Status" CLOB)

Tell me the launched for august 31, 1964
SELECT "Launched" FROM table_4456 WHERE "Commissioned" = 'august 31, 1964'
SELECT "Launched" FROM "table_4456" WHERE "Commissioned" = 'august 31, 1964'