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  • Oracle 查询两个时间段内的所有日期列表

    1、查询某时间段内日期列表 

    select level,to_char(to_date('2013-12-31','yyyy-mm-dd')+level-1,'yyyy-mm-dd') as date_time  
    from dual 
    connect by level <=to_date('2014-01-03','yyyy-mm-dd')-to_date('2013-12-31','yyyy-mm-dd')+1 


    2、查询前两个月日期列表 

    1 SELECT T.DATE_ID FROM ( 
    2 select to_char(ADD_MONTHS( TO_DATE(to_char(sysdate-1,'yyyyMMdd'),'yyyyMMdd' ) ,- 2)+ rownum,'yyyyMMdd' ) DATE_ID 
    3 from dual 
    4 connect by rownum <=to_date(to_char(sysdate-1,'yyyyMMdd'),'yyyyMMdd')-ADD_MONTHS( TO_DATE(to_char(sysdate-1,'yyyyMMdd'),'YYYYMMDD' ) ,- 2 ) 
    5 ) t order by DATE_ID desc 

    3.查询月份列表 

    1 SELECT TO_CHAR(ADD_MONTHS(TO_DATE('2014-10', 'yyyy-MM'), ROWNUM - 1), 
    2                'yyyyMM') as monthlist 
    3   FROM DUAL 
    4 CONNECT BY ROWNUM <= 
    5            months_between(to_date('2015-06', 'yyyy-MM'), 
    6                           to_date('2014-10', 'yyyy-MM')) + 1 

    4.年份列表 

     1 SELECT 
     2     TO_CHAR( ADD_MONTHS( TO_DATE( '2014-10' ,'yyyy-MM' ) ,( ROWNUM - 1 ) * 12 ) ,'yyyy' ) AS yearlist 
     3 FROM 
     4     DUAL CONNECT BY ROWNUM <= months_between( 
     5         to_date( 
     6             '2015-06' , 
     7             'yyyy-MM' 
     8         ) , 
     9         to_date( 
    10             '2014-10' , 
    11             'yyyy-MM' 
    12         ) 
    13     ) / 12 + 1
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  • 原文地址:https://www.cnblogs.com/yanglang/p/10313125.html
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