Oracle实现查询2个日期所跨过的月份列表/日期列表

Select Rownum, to_date('2019-01-02', 'yyyy-mm-dd')+Rownum-1
from dual
connect by rownum< to_date('2019-01-22', 'yyyy-mm-dd')-to_date('2019-01-02', 'yyyy-mm-dd') +2;

select ss.DAY_ID from (
SELECT TO_CHAR(TO_DATE('2019-01-02','YYYY-MM-DD')+ROWNUM-1 ,'YYYY-MM') DAY_ID
from dual
connect by rownum< to_date('2020-03-15', 'yyyy-mm-dd')-to_date('2019-01-02', 'yyyy-mm-dd') +2
) ss GROUP BY DAY_ID ORDER BY DAY_ID