如何获取当前时间的月份、前N个月份及其对应的年份和日期

获取当前时间的月份和前n个月份

SELECT TO_CHAR(ADD_MONTHS(sysdate, -ROWNUM), &＃8216;YYYYMM&＃8217;) 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 &＃8211; 1)), &＃8216;YYYY&＃8217;) 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 &＃8211; ROWNUM + 1, &＃8216;YYYYMMDD&＃8217;) TJRQ

  FROM DUAL

CONNECT BY LEVEL <= 5

oracle 获取 1到100 显示

select rownum from dual connect by rownum<=100