之前遇到一个需求,需要与当月所有日期关联。研究了一下, 做个笔记备忘
select trunc(sysdate,'mm') + rn - 1 from ( select rownum rn from all_objects where rownum <= trunc(to_char(last_day(sysdate),'dd')) );
之前遇到一个需求,需要与当月所有日期关联。研究了一下, 做个笔记备忘
select trunc(sysdate,'mm') + rn - 1 from ( select rownum rn from all_objects where rownum <= trunc(to_char(last_day(sysdate),'dd')) );