获取当前时间的月份和前n个月份 、年份 、日期

获取当前时间的月份和前n个月份

SELECT TO_CHAR(ADD_MONTHS(sysdate, -ROWNUM), 'YYYYMM') TJRQ

FROM DUAL

CONNECT BY LEVEL <= 5



获取当前时间的年份和前n个年份

SELECT TO_CHAR(ADD_MONTHS(sysdate, -12 * (ROWNUM - 1)), 'YYYY') TJRQ

FROM DUAL

CONNECT BY LEVEL <= 5



获取当前时间的日期和前n个日期

SELECT TO_CHAR(sysdate - ROWNUM + 1, 'YYYYMMDD') TJRQ

FROM DUAL

CONNECT BY LEVEL <= 5