Question

我正在尝试按日期计算所有打开的门票/已关闭门票组。有些日期的两个值都是0，但我还是想显示日期。我觉得我很接近，但似乎无法让分组正确，它只是给出一个总数。

DECLARE @DateFrom AS DATE = '11/16/2016'
DECLARE @DateTo AS DATE = GETDATE()

WITH DateRanges AS
(SELECT @DateFrom AS 'DateValue'
UNION ALL
SELECT DATEADD(DAY, 1, DateValue)
FROM DateRanges
WHERE DateValue < @DateTo)

SELECT CONVERT(varchar(10),DateValue, 101) AS "DateVal",

(SELECT 
COUNT(OPENDATE)
FROM DateRanges AS a
LEFT OUTER JOIN MAINTABLE
ON a.DateValue = convert(varchar(10), DATEADD(hh, DATEDIFF(HH, GetUTCDATE(), GETDATE()), OPENDATE), 101)
) AS opn,


(SELECT
COUNT(CLOSEDDATE)
FROM DateRanges AS b
LEFT OUTER JOIN MAINTABLE
ON b.DateValue = convert(varchar(10), DATEADD(hh, DATEDIFF(HH, GetUTCDATE(), GETDATE()), CLOSEDDATE), 101)
) AS cls 

FROM DateRanges
GROUP BY CONVERT(varchar(10),DateValue, 101)

这会产生以下结果：

DateVal | opn | cls
11/16/2016 | 3 | 3
11/17/2016 | 3 | 3
11/18/2016 | 3 | 3

MainTable

ID  | OPENDATE   | CLOSEDDATE 
123 | 11/16/2016 | 11/16/2016
124 | 11/16/2016 | 11/18/2016
125 | 11/18/2016 | 11/18/2016

预期产出

DateVal    | opn | cls
11/16/2016 | 2   | 1
11/17/2016 | 0   | 0
11/18/2016 | 1   | 2

感谢您的帮助

Answer 1

您可以使用自己的方法，但需要相关的子查询，而不是总计：

WITH DateRanges AS (
      SELECT @DateFrom AS 'DateValue'
      UNION ALL
      SELECT DATEADD(DAY, 1, DateValue)
      FROM DateRanges
      WHERE DateValue < @DateTo
     )
SELECT CONVERT(varchar(10), DateValue, 101) AS "DateVal",
       (SELECT COUNT(mt.REQDATE)
        FROM MAINTABLE mt
        WHERE dr.DateValue = convert(varchar(10), DATEADD(hour, DATEDIFF(hour, GetUTCDATE(), GETDATE()), mt.OPENDATE), 101)
      ) AS opn,
      (SELECT COUNT(CLSDDATE)
       FROM MAINTABLE mt
       WHERE dr.DateValue = convert(varchar(10), DATEADD(hh, DATEDIFF(hour, GetUTCDATE(), GETDATE()), mt.CLOSEDDATE), 101)
      ) AS cls 
FROM DateRanges dr;

另请注意，您不需要在外部查询中使用聚合。

SQL Join多个子查询 - 按日期计算打开/关闭

1 个答案: