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我有一个包含 2 个日期列的表，它们分别代表 JIRA 项目的创建和关闭。对于报告，我需要获取每个日期创建和关闭项目的数量，以及累积的。

但是在某些日期没有创建或关闭项目，因此完整的外部联接返回空值。这会导致我无法纠正的累积总和列中的空值。

我已经尝试了很多不同的方法来合并：

Select
    coalesce(A.createdate, B.closedate) datum
    ,COALESCE(A.created, 0) created
    ,COALESCE(B.closed,0) closed
    ,sum(created) OVER(ORDER BY A.createdate ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cumSum
    ,sum(coalesce(created,0)) OVER(ORDER BY A.createdate ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cumSum2
    ,COALESCE(sum(created) OVER(ORDER BY A.createdate ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW),0) cumSum3
    ,sum(coalesce(created,0)) OVER(ORDER BY A.createdate ROWS BETWEEN UNBOUNDED PRECEDING AND 1 preceding) + coalesce(created,0) cumSum4
from
(SELECT convert(date,[Created]) createdate, COUNT(*) created
  FROM [jira].[dbo].[report_clean_full]
  group by convert(date,[Created])) A
full outer join (SELECT convert(date,Resolved) closedate, COUNT(*) closed
  FROM [jira].[dbo].[report_clean_full]
  where status = 'Closed'
  group by convert(date,Resolved)) B
on A.createdate = B.closedate
order by 1

结果

2012-08-17  1   0   1   1   1   1
2012-08-23  1   0   2   2   2   2
2012-08-30  4   0   6   6   6   6
2012-09-03  1   0   7   7   7   7
2012-09-06  25  0   32  32  32  32
2012-09-07  30  3   62  62  62  62
2012-09-10  11  6   73  73  73  73
2012-09-11  6   1   79  79  79  79
2012-09-13  1   0   80  80  80  80
2012-09-14  10  1   90  90  90  90
2012-09-17  7   1   97  97  97  97
2012-09-18  4   2   101 101 101 101
2012-09-19  4   2   105 105 105 105
2012-09-20  19  5   124 124 124 124
2012-09-21  12  0   136 136 136 136
2012-09-24  7   1   143 143 143 143
2012-09-26  0   7   NULL    0   0   0
2012-09-27  18  2   161 161 161 161
2012-09-28  7   0   168 168 168 168
2012-10-01  4   1   172 172 172 172

在 2012 年 9 月 26 日，只有关闭的项目，但我希望 cumSum 显示 143 而不是 0（最终重复关闭项目并减去以获得打开项目的数量）

谁能解释我做错了什么？

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1 回答 1

2

类似于我对 gpn 评论的回复：

解决方案是在 OVER() 中合并 ORDER BY 的日期。据我了解，问题不在于值本身，而在于 NULL 范围。

sum(coalesce(created,0)) OVER(ORDER BY coalesce(A.createdate,b.closedate) ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cumSumCreated
于 2013-04-24T08:48:25.423 回答