Oracle日期范围

一、SQL语句:

select to_date(to_char(to_date(\'2017-10-01\', \'yyyy-mm-dd\') + rownum - 1,
\'yyyy-mm-dd\'),
\'yyyy-mm-dd\') as updatedate
from dual
connect by rownum <=
trunc(to_date(\'2017-10-31\', \'yyyy-mm-dd\') -
to_date(\'2017-10-01\', \'yyyy-mm-dd\')) + 1

二结果: