如何获得每天总计(How to get totals per day)

您好我有一个表，如下所示：

                  Table Name: Emails
    ID        |CreatedDate             |finalStatus
    115173922 |2013-04-09 12:33:23.234 |DELIVERED
    115123432 |2013-04-09 08:21:23.234 |FAILED
    115143212 |2013-04-09 12:24:23.234 |DELIVERED
    115173922 |2013-04-09 05:05:23.234 |DELIVERED
    111233922 |2013-04-10 12:44:23.234 |PENDING
    115123912 |2013-04-10 12:05:23.234 |DELIVERED
    115173922 |2013-04-11 22:09:23.234 |DELIVERED
    111233922 |2013-04-11 13:05:23.234 |PENDING
    115123912 |2013-04-11 05:23:23.234 |DELIVERED

我需要做的就是所传递的总金额，失败了，每天PENDING finalStatus的月供。我曾试图改变人们在以前的答案，例如这已经给MySQL代码： SQL查询计算，每天订单的总号？但一直没能得到它的工作。

这里是我到目前为止的代码：

    SELECT DISTINCT  (CAST(CreatedDate as DATE)) as Date,

    (SELECT COUNT(finalStatus)
    FROM [Emails]
    WHERE finalStatus = 'DELIVERED') AS Delivered,

    (SELECT COUNT(finalStatus)
    FROM [Emails]
    WHERE finalStatus = 'FAILED') AS Failed,

    (SELECT COUNT(finalStatus)
    FROM [Emails]
    WHERE finalStatus = 'PENDING') AS Pending

    FROM [Emails]
    GROUP BY (CAST(CreatedDate as DATE))

如果有人可以帮助我，将是惊人的。我一直停留在这个现在几个小时，可能很快就会发疯...

Answer 1:

由于这是SQL Server 2008 ，利用铸造的CREATEDDATE到DATE只使用CAST()

SELECT CAST(E.CreatedDate AS DATE) DateCreated,
       COUNT(case when E.finalStatus = 'DELIVERED' then 1 end) as DELIVERED,
       COUNT(case when E.finalStatus = 'FAILED' then 1 end) as FAILED,
       COUNT(case when E.finalStatus = 'PENDING' then 1 end) as PENDING
FROM    TableName E
GROUP   BY CAST(E.CreatedDate AS DATE)

http://www.sqlfiddle.com/#!3/dc195/4

Answer 2:

你可以每个月不同的是这样的：

SELECT year(datestart), month(datestart)
finalStatus,
COUNT(finalStatus)
FROM [Emails]
GROUP BY year(datestart), month(datestart),finalStatus

和分组像这是一个更快的方法，比subquerying。

Answer 3:

我想你需要的东西是这样的：

DATENAME

select CAST(CreatedDate as DATE),
       sum(case when E.finalStatus = 'DELIVERED' then 1 else 0 end) as DELIVERED,
       sum(case when E.finalStatus = 'FAILED' then 1 else 0 end) as FAILED,
       sum(case when E.finalStatus = 'PENDING' then 1 else 0 end) as PENDING
from Emails E
where DATENAME(MONTH,E.CreatedDate)='your month name'
group by CAST(E.CreatedDate as DATE)

SQL小提琴

Answer 4:

尝试这个

 SELECT DISTINCT  (CAST(CreatedDate as DATE)) as Date,

    (SELECT COUNT(finalStatus)
    FROM [Emails] E1
    WHERE finalStatus = 'DELIVERED'  AND 
    CAST(E1.CreatedDate as DATE) = CAST(E.CreatedDate as DATE)) AS Delivered,

    (SELECT COUNT(finalStatus)
    FROM [Emails] E2
    WHERE finalStatus = 'FAILED' AND 
     CAST(E2.CreatedDate as DATE) = CAST(E.CreatedDate as DATE)) AS Failed,

    (SELECT COUNT(finalStatus)
    FROM [Emails] E3
    WHERE finalStatus = 'PENDING' AND 
     CAST(E3.CreatedDate as DATE) = CAST(E.CreatedDate as DATE)) AS Pending

    FROM [Emails] E
    GROUP BY (CAST(CreatedDate as DATE))

Answer 5:

如果你只是想有一个交易的日期， 无视这个答案，因为这两个LUV和Skinny Pipes已经证明了它 。

考虑到你想要得到的整整一个月的所有日期APRIL ，你首先需要生成整个月份的日历表APRIL ，然后用你的表加入。此查询使用递归CTE创建日历。

WITH April_Calendar
AS
(
  SELECT CAST('20130401' as datetime) AS [date]
  UNION ALL
  SELECT DATEADD(dd, 1, [date])
  FROM   April_Calendar
  WHERE  DATEADD(dd, 1, [date]) <= '20130430'
)
SELECT  a.[Date] DateCreated,
        COUNT(case when E.finalStatus = 'DELIVERED' then 1 end) as DELIVERED,
        COUNT(case when E.finalStatus = 'FAILED' then 1 end) as FAILED,
        COUNT(case when E.finalStatus = 'PENDING' then 1 end) as PENDING
FROM    April_Calendar a
        LEFT JOIN Emails E
            ON a.[date] = CAST(E.CreatedDate AS DATE)
GROUP   BY a.[Date]

SQLFiddle演示

Answer 6:

with daily_figures as
(
select 
 cast(CreatedDate as date) as CreatedDate,
 finalStatus,
 Count(*) as DayCount
From 
  EMails
Group 
  by cast(CreatedDate as date), FinalStatus
)
select * from daily_figures 
Where 
  datepart(month, CreatedDate) = 4 and
  datepart(year, CreatedDate) = 2013

这取决于你的应用程序如何提供必要的一年情况。

SQL小提琴

文章来源: How to get totals per day