Oracle獲取每分鍾、每10分鍾、每小時、每天、每周、每月、每年的時間或日期

 

- 獲取某天的每分鍾時間 SELECT TO_DATE('2018-03-23', 'YYYY-MM-DD') + (ROWNUM - 1) / (24 * 60) FROM DUAL CONNECT BY ROWNUM <= 24*60; -- 獲取某天的每10分鍾時間 SELECT TO_DATE('2018-03-23', 'YYYY-MM-DD') + (ROWNUM - 1) / (24 * 6) FROM DUAL CONNECT BY ROWNUM <= 24*6; -- 獲取某天每小時的時間 SELECT TO_DATE('2018-03-23', 'YYYY-MM-DD') + (ROWNUM - 1) / 24 FROM DUAL CONNECT BY ROWNUM <= 24; -- 獲取某時間段內每天的日期 SELECT TO_DATE('2018-03-23', 'YYYY-MM-DD') + (ROWNUM - 1) FROM DUAL CONNECT BY ROWNUM <= TRUNC(TO_DATE('2020-03-23', 'YYYY-MM-DD')) - TRUNC(TO_DATE('2018-03-23', 'YYYY-MM-DD')); -- 獲取某時間段內每周的起始日期和其周數 SELECT TRUNC(TO_DATE('2018-03-02', 'YYYY-MM-DD') + (ROWNUM - 1) * 7， 'D') + 1 AS STARTTIME, TO_CHAR(TO_DATE('2018-03-02', 'YYYY-MM-DD') + (ROWNUM - 1) * 7， 'IW') AS WEEK FROM DUAL CONNECT BY ROWNUM <= TRUNC(TO_DATE('2019-03-02', 'YYYY-MM-DD') - TO_DATE('2018-03-02', 'YYYY-MM-DD')) / 7 + 1; -- 獲取某時間段內的每月 SELECT TO_CHAR(ADD_MONTHS(TO_DATE('2018-03-02', 'YYYY-MM-DD'), ROWNUM - 1), 'YYYY-MM') FROM DUAL CONNECT BY ROWNUM <= CEIL(MONTHS_BETWEEN(TO_DATE('2020-03-03', 'YYYY-MM-DD'), TO_DATE('2018-03-02','YYYY-MM-DD'))); -- 獲取某時間段內每年的年份 SELECT TO_CHAR(ADD_MONTHS(TO_DATE('2018-03-02', 'YYYY-MM-DD'), (ROWNUM - 1) * 12), 'YYYY') FROM DUAL CONNECT BY ROWNUM <= CEIL(MONTHS_BETWEEN(TO_DATE('2020-03-03', 'YYYY-MM-DD'), TO_DATE('2018-03-02','YYYY-MM-DD')) / 12); 

轉載自：https://blog.csdn.net/winne_shen/article/details/79668164