oracle利用between查询两个日期之间数据

3)当前者数大于后者,如：salary between 100 and 10;此时不会出错，但salary为50的记录也不能被取出。

4）not between..and..只是取指定范围的相反范围，也就是不在这个范围的记录，其用户可以用组个逻辑条件来取代。

SELECT MONTHS_BETWEEN (TO_DATE ('2003/01/01', 'yyyy/mm/dd'), TO_DATE ('2003/03/14', 'yyyy/mm/dd')) FROM dual;
returns -2.41935483870968



SELECT MONTHS_BETWEEN (TO_DATE ('2003/07/01', 'yyyy/mm/dd'), TO_DATE ('2003/03/14', 'yyyy/mm/dd')) FROM dual;
returns 3.580516129032

下面查找月份

MONTHS_BETWEEN(, )

SELECT MONTHS_BETWEEN(SYSDATE+365, SYSDATE-365) FROM dual;

SELECT MONTHS_BETWEEN(SYSDATE-365, SYSDATE+365) FROM dual;