将分组应用于SQL Server视图

Question

我的SQL Server数据库中有一个名为PictureCount的视图。我根据以下查询获取数据 -

with result as
(SELECT CAST(Createddate AS DATE) AS StartDate, COUNT(ServicePictureID) AS TotalPicture 
 FROM PictureCount 
 WHERE ProjectID='11' AND 
 CAST(CreatedDate As DATE) BETWEEN '2014-10-31' AND '2014-12-05' 
 GROUP BY CAST(Createddate AS DATE)
)
SELECT 
   (CAST(DATEPART(YYYY, CAST(StartDate AS DATE)) as varchar) + '-' + CAST(DATEPART(MONTH ,CAST(StartDate AS DATE)) AS varchar)) AS StartDate, 
   TotalPicture 
FROM result

数据以下列格式显示 -

但我想要按StartDate分组的数据。我无法应用GROUP BY条款。如果有人知道，请告诉我。

提前致谢。

Answer 1

尝试此查询：

SELECT Cast(Datepart(YEAR, StartDate) AS VARCHAR(4))
       + '-'
       + Cast(Datepart(MONTH, StartDate) AS VARCHAR(2)) AS StartDate,
       Count(ServicePictureID)                          AS TotalPicture
FROM   PictureCount
WHERE  ProjectID = '11'
       AND CreatedDate BETWEEN '2014-10-31' AND '2014-12-06'
GROUP  BY Datepart(YEAR, StartDate),Datepart(MONTH, StartDate) 

Answer 2

如果你能用yyyyMM格式而不是yyyy-MM显示数据，那怎么样呢。此查询的功能和转换次数较少。

SELECT Datepart(YEAR, StartDate)*100 + Datepart(MONTH, StartDate) as yyyyMM
, Count(ServicePictureID) AS TotalPicture
FROM   PictureCount
WHERE  ProjectID = '11'
       AND CreatedDate BETWEEN '2014-10-31' AND '2014-12-05'
GROUP  BY Datepart(YEAR, StartDate)*100 + Datepart(MONTH, StartDate)