如何从表中的两个日期之间获取值，这些日期中没有数据

Question

我通过分组日期从我的表中获得总数。例如，当我尝试获得'08 .03.2013'和'22 .03.2013'之间的值时，请查看下面的图片。没有关于18.03.2013和20.03.2013的数据。

但我需要那个日期，因为我在前端使用高图，而不想在前端处理这个。

你有什么建议吗？

由于

SELECT TO_CHAR(CR_DATE, 'DD') DAY, TO_CHAR(CR_DATE, 'MM') MONTH, TO_CHAR(CR_DATE, 'YY') YEAR, 
count(STAB_ID) AS total FROM paytrans 
WHERE acct_id = 1552 AND status = 'DND_FNSH' and CR_DATE > '08.03.2013' AND CR_DATE < '22.03.2013' 
GROUP BY TO_CHAR(CR_DATE, 'YY'), TO_CHAR(CR_DATE, 'DD'), TO_CHAR(CR_DATE, 'MM') 
ORDER BY year, month, day

[编辑@art]

SELECT  TO_CHAR(CR_DATE-1, 'DD')  + LEVEL DAY, TO_CHAR(CR_DATE, 'MM')    MONTH, TO_CHAR(CR_DATE, 'YY')  YEAR,(cr_date-1) + LEVEL AS cr_date
  FROM   
(
SELECT
       To_Date('08.05.2013', 'DD.MM.YYYY')  end_date, 
       To_Date('08.04.2013', 'DD.MM.YYYY')  cr_date 
 FROM dual     
)
CONNECT BY LEVEL <= (end_date - cr_date)+1

Answer 1

根据您的日期，这是日历。您可以在查询中比较日期和日历日期：

SELECT cr_date
     , to_char(cr_date, 'DD')   curr_day
     , to_char(cr_date, 'MM')   curr_month
     , to_char(cr_date, 'YYYY') curr_year
 FROM
 (
 SELECT (cr_date-1) + LEVEL AS cr_date
   FROM 
   (
    SELECT To_Date('08.05.2013', 'DD.MM.YYYY')  end_date
         , To_Date('08.04.2013', 'DD.MM.YYYY')  cr_date 
      FROM dual
   )
   CONNECT BY LEVEL <= (end_date - cr_date)+1
 )
/

CR_DATE    CURR_DAY    CURR_MONTH    CURR_YEAR
-------------------------------------------------
4/8/2013     08         04          2013
4/9/2013     09         04          2013
4/10/2013    10         04          2013
....
....
4/30/2013    30         04          2013
5/1/2013     01         05          2013
5/2/2013     02         05          2013
...
...
5/8/2013     08          05         2013