select sysdate from dual;
--获取上个的最后一天
select last_day(add_months(sysdate,-1)) from dual;
select to_date(add_months(last_day(add_months(sysdate,-1))+1,-1)) from dual;
select trunc(sysdate), to_date(to_char(sysdate,'yyyy-mm-dd')||'23:59:59', 'YYYY-MM-DD HH24:MI:SS') from dual;
select trunc(sysdate), to_date(to_char(sysdate,'yyyy-mm-dd')||'00:00:01', 'YYYY-MM-DD HH24:MI:SS') from dual;
---获取上个月最后一天时间
select to_date(to_char(
(select last_day(add_months(sysdate,-1)) from dual)
,'yyyy-mm-dd')||'23:59:59', 'YYYY-MM-DD HH24:MI:SS') from dual;
---获取上个月第一天的时间
select to_date(to_char(
(select to_date(add_months(last_day(add_months(sysdate,-1))+1,-1)) from dual)
,'yyyy-mm-dd')||'00:00:01', 'YYYY-MM-DD HH24:MI:SS') from dual;
--获取上个的最后一天
select last_day(add_months(sysdate,-1)) from dual;
select to_date(add_months(last_day(add_months(sysdate,-1))+1,-1)) from dual;
select trunc(sysdate), to_date(to_char(sysdate,'yyyy-mm-dd')||'23:59:59', 'YYYY-MM-DD HH24:MI:SS') from dual;
select trunc(sysdate), to_date(to_char(sysdate,'yyyy-mm-dd')||'00:00:01', 'YYYY-MM-DD HH24:MI:SS') from dual;
---获取上个月最后一天时间
select to_date(to_char(
(select last_day(add_months(sysdate,-1)) from dual)
,'yyyy-mm-dd')||'23:59:59', 'YYYY-MM-DD HH24:MI:SS') from dual;
---获取上个月第一天的时间
select to_date(to_char(
(select to_date(add_months(last_day(add_months(sysdate,-1))+1,-1)) from dual)
,'yyyy-mm-dd')||'00:00:01', 'YYYY-MM-DD HH24:MI:SS') from dual;