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我需要使用以下内容填充 Oracle 11g 数据库中的日历表：calendar_date、week_number、week_year、day_since_2000、week_since_2000、month_since_2000、quarter_since_2000、week_of_month

该表已经填充了自 2000 年以来的数据，我现在需要使用 since_2000 列的负数填充到 1994 年的数据。我想除了 2000 年以来的一周和 2000 年以来的季度外，我什么都想好了。

EDIT1：刚刚注意到我自 200 年以来的一周和自 2000 年以来的一个月仍然一团糟。使用下面提到的答案后，自 2000 年以来的季度看起来不错。我正在用最新的查询更新。

EDIT2：由于缺少 trunc()，它无法正常工作。它现在工作正常。最新查询已更新。

这就是我用来做的：

/* Formatted on 2/1/2013 11:54:27 AM (QP5 v5.227.12220.39724) */
CREATE OR REPLACE PROCEDURE populate_d_calendar (start_date     IN DATE,
                         end_date       IN DATE)
AS
BEGIN
   INSERT INTO d_calendar (calendar_date,
               week_number,
               week_year,
               day_since_2000,
               week_since_2000,
               month_since_2000,
               quarter_since_2000,
               week_of_month)
      SELECT dt,                                                        --Date
         TO_CHAR (dt,
              'ww'),                                --Week in the year
         TO_CHAR (dt,
              'yyyy'),                                          --Year
         TO_CHAR (dt - end_date),                         --Day Since 2000
         TRUNC (TO_CHAR (dt - end_date) / 7),            --Week Since 2000
         TRUNC (MONTHS_BETWEEN (dt,
                    end_date)),             --Month Since 2000
         CASE
        WHEN TO_CHAR (dt,
                  'MMDD') >= '0101'
         AND TO_CHAR (dt,
                  'MMDD') < '0401'
        THEN
             0
           +   4
             * TRUNC (  MONTHS_BETWEEN (TO_DATE (   '0101'
                             || TO_CHAR (dt,
                                     'yyyy'),
                             'mmddyyyy'),
                        TO_DATE ('01Jun2000'))
                  / 12)                                       --q1
        WHEN TO_CHAR (dt,
                  'MMDD') >= '0401'
         AND TO_CHAR (dt,
                  'MMDD') < '0701'
        THEN
             1
           +   4
             * TRUNC (  MONTHS_BETWEEN (TO_DATE (   '0101'
                             || TO_CHAR (dt,
                                     'yyyy'),
                             'mmddyyyy'),
                        TO_DATE ('01Jun2000'))
                  / 12)                                       --q2
        WHEN TO_CHAR (dt,
                  'MMDD') >= '0701'
         AND TO_CHAR (dt,
                  'MMDD') < '1001'
        THEN
             2
           +   4
             * TRUNC (  MONTHS_BETWEEN (TO_DATE (   '0101'
                             || TO_CHAR (dt,
                                     'yyyy'),
                             'mmddyyyy'),
                        TO_DATE ('01Jun2000'))
                  / 12)                                       --q3
        WHEN TO_CHAR (dt,
                  'MMDD') >= '1001'
         AND TO_CHAR (dt,
                  'MMDD') <= '1231'
        THEN
             3
           +   4
             * TRUNC (  MONTHS_BETWEEN (TO_DATE (   '0101'
                             || TO_CHAR (dt,
                                     'yyyy'),
                             'mmddyyyy'),
                        TO_DATE ('01Jun2000'))
                  / 12)                                       --q4
         END
        quarters_since_2000,                      --Quarter Since 2000
         TO_CHAR (dt,
              'w')                                 --Week of the month
    FROM (SELECT start_date + LEVEL - 1 dt
        FROM DUAL
          CONNECT BY LEVEL <= end_date - start_date + 1);
END;
/
4

3 回答 3

1

我认为您像其他人一样追求浮点数，所以也许：

TO_CHAR (dt - end_date)/7 week_since_2000

和

(MONTHS_BETWEEN (dt,
            end_date)/3) quarter_since_2000
于 2013-02-01T16:51:21.603 回答
1

几周后，您可以在此处遵循其中一种方法：

http://searchoracle.techtarget.com/answer/Calculating-weeks-between-two-dates

因为这将取决于哪些规则对您更有用

与宿舍，使用这个：

case 
         WHEN TO_CHAR (dt,'MMDD') >= '0101' and TO_CHAR (dt,'MMDD') < '0401' then  0 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12)   --q1
         WHEN TO_CHAR (dt,'MMDD') >= '0401' and TO_CHAR (dt,'MMDD') < '0701' then  1 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12)  --q2
         WHEN TO_CHAR (dt,'MMDD') >= '0701' and TO_CHAR (dt,'MMDD') < '1001' then  2 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12)  --q3
         WHEN TO_CHAR (dt,'MMDD') >= '1001' and TO_CHAR (dt,'MMDD') <= '1231' then 3 + 4 * trunc(months_between( to_date('0101' || to_char(dt,'yyyy'),'mmddyyyy'),to_date('01Jun2000' )) /12)   --q4
         end         quarters_since_2000,
于 2013-02-01T17:18:55.327 回答
1

这是我从 2013 年 1 月 1 日到今天的日历表版本。我不确定您需要如何插入月数、季度数、天数等​​...您需要显示每年或一次之间的总月数？您可以自己添加这些计算或在您的帖子中添加所需的输出以使其清晰。请参阅下面的 addl 查询/评论：

-- Days,weeks, quarters from 1/1/2013 --
SELECT start_date                               -- 1/1/2013 --
    , TRUNC(start_date, 'iw')                  wk_starts  
    , TRUNC(start_date, 'iw') + 7 - 1/86400    wk_ends
    , TO_NUMBER (TO_CHAR (start_date, 'IW'))   ISO_wk#  
    , TO_NUMBER (TO_CHAR (start_date, 'Q'))    Quarters  
 FROM
  (
   SELECT TRUNC(SYSDATE, 'Y')-1 + LEVEL AS start_date  
     FROM dual
   CONNECT BY LEVEL <= 
  (  -- replace this part to go back to 1994 - see below --
  SELECT TRUNC(ADD_MONTHS (SYSDATE, 12), 'Y')-TRUNC(SYSDATE, 'Y') "Num of Days in 2013"   
    FROM dual
  )
)
/

START_DATE  WK_STARTS   WK_ENDS                 ISO_WK#     QUARTERS
---------------------------------------------------------------------
1/1/2013    12/31/2012  1/6/2013 11:59:59 PM    1           1
1/2/2013    12/31/2012  1/6/2013 11:59:59 PM    1           1
......
2/19/2013   2/18/2013   2/24/2013 11:59:59 PM   8           1
2/20/2013   2/18/2013   2/24/2013 11:59:59 PM   8           1
......
3/10/2013   3/4/2013    3/10/2013 11:59:59 PM   10          1
3/11/2013   3/11/2013   3/17/2013 11:59:59 PM   11          1
.......

-- 6971 days from 1/1/1994 till today - 2/1/2013 --
SELECT TRUNC(SYSDATE) - TRUNC(ADD_MONTHS (SYSDATE, -12*19), 'Y') "Num of Days from 1994"
  FROM dual
/

-- 4780 days from 1/1/2000 till today - 2/1/2013 --
SELECT TRUNC(SYSDATE) - TRUNC(ADD_MONTHS (SYSDATE, -12*13), 'Y') "Num of Days from 2000"
  FROM dual
/

-- 156 Months between from 2000 toll today --
SELECT MONTHS_BETWEEN(TRUNC(SYSDATE), TRUNC(ADD_MONTHS (SYSDATE, -12*13))) mo_btw_2000_till_today 
  FROM dual
/

-- Number of weeks btw. 2 dates -- 
SELECT to_char(sysdate, 'WW') - to_char(sysdate-30, 'WW') number_of_weeks FROM dual
/

这可能不是您想要的...为了帮助您更多，我需要查看您的查询的实际预期输出。只是想帮忙...

于 2013-02-01T19:22:35.943 回答