需要每月报告，我需要每天的数量总和

Question

我有一个表 STOCK_REGISTER，其中有 Id、ItmId、Qty、CreatedDate 列。并且有每日的交易数据，比如项目向内、向外和所有。

现在我正在开发一份月度报告，我想在其中显示整个月项目数量的按日汇总。为此，我编写了以下查询。

SELECT CONVERT(Date,CreatedDate) AS CreatedDate,ItmId, SUM(Qty)
FROM   STOCK_REGISTER
GROUP BY CONVERT(Date,CreatedDate),ItmId

此查询返回正确的数据，但如果我要的是 2017 年 4 月的数据并且 STOCK_REGISTER 在 4 月 5 日没有任何记录，那么它根本不会显示 4 月 5 日，我需要 0 值在 4 月 5 日该项目的数量.

您能帮我获取此类数据吗？

编辑：

我创建了一个查询，它给出了任何特定月份的所有天数，并使用 STOCK_REGISTER 应用了左联接，但仍未解决我的问题。

declare @month int, @year int

set @month = 4

set @year = 2017

SELECT  CAST(CAST(@year AS VARCHAR) + '-' + CAST(@Month AS VARCHAR) + '-01' AS DATETIME) + A.Number AS STKFG_CREATED_DATE,
        B.STKFG_ITM_ID,
        0 AS OPENING_STOCK,
        SUM(STKFG_QTY)
FROM    master..spt_values A
        LEFT JOIN STOCK_REGISTER_FG B
ON          CONVERT(DATE,CAST(CAST(@year AS VARCHAR) + '-' + CAST(@Month AS VARCHAR) + '-01' AS DATETIME) + A.Number) = CONVERT(DATE,B.STKFG_CREATED_DATE)
        AND C.ITM_ID = B.STKFG_ITM_ID
WHERE type = 'P'
    AND (CAST(CAST(@year AS VARCHAR) + '-' + CAST(@Month AS VARCHAR) + '-01' AS DATETIME) + A.Number ) <
        DATEADD(mm,1,CAST(CAST(@year AS VARCHAR) + '-' + CAST(@Month AS VARCHAR) + '-01' AS DATETIME) )
    AND STKFG_TRAT_ID = 6
GROUP BY A.Number, B.STKFG_ITM_ID
ORDER BY B.STKFG_ITM_ID,CAST(CAST(@year AS VARCHAR) + '-' + CAST(@Month AS VARCHAR) + '-01' AS DATETIME) + A.Number

Answer 1

感谢您的 cmets。

我找到了一种适合我的解决方案。

此处#TEMP_TABLE 包含所有日期。

SELECT  A.CREATED_DATE,B.ITM_NAME,ISNULL(C.STKFG_QTY,0)
FROM    #TEMP_TABLE A
        CROSS APPLY ITEM_MASTER B
        LEFT JOIN ( SELECT  CONVERT(DATE,STKFG_CREATED_DATE) AS STKFG_CREATED_DATE, STKFG_ITM_ID, SUM(STKFG_QTY) AS STKFG_QTY
                    FROM    STOCK_REGISTER_FG GROUP BY CONVERT(DATE,STKFG_CREATED_DATE),STKFG_ITM_ID) C
ON          CONVERT(DATE,A.CREATED_DATE) = CONVERT(DATE,C.STKFG_CREATED_DATE)
            AND B.ITM_ID = C.STKFG_ITM_ID
ORDER BY B.ITM_NAME,A.CREATED_DATE

Answer 2

试试下面的脚本。这里@tblData 是您的实际表名。

     declare @tblData table

(id int,datecolumn date)
INSERT INTO @tblData
        (id,datecolumn)

 SELECT 1,'2010-01-01' UNION ALL  
 SELECT 3,'2010-01-01' UNION ALL  
 SELECT 1,'2010-01-03' UNION ALL  
 SELECT 2,'2010-01-04' UNION ALL      
 SELECT 1,'2010-01-05' UNION ALL  
 SELECT 3,'2010-01-06' UNION ALL  
 SELECT 1,'2010-01-10' UNION ALL  
 SELECT 1,'2010-01-10' UNION ALL  
 SELECT 2,'2010-01-11' UNION ALL  
 SELECT 1,'2010-01-11' UNION ALL  
 SELECT 2,'2010-01-11' UNION ALL   
 SELECT 1,'2010-01-12'  UNION ALL          
 SELECT 3,'2010-01-13' 



DECLARE  @MaxDate DATE, 
         @MinDate DATE, 
         @iDate  DATE 

DECLARE  @DateSequence TABLE( 
                          DATE1 DATE 
                          ) 

SELECT @MaxDate = Convert(DATE,Max(datecolumn)), 
       @MinDate = Convert(DATE,Min(datecolumn)) 
FROM   @tblData -- Put your month condition 

SET @iDate = @MinDate 

WHILE (@iDate <= @MaxDate) 
  BEGIN 
    INSERT @DateSequence
    SELECT @iDate 

    SET @iDate = Convert(DATE,Dateadd(DAY,1,@iDate)) 
  END 

SELECT  a.DATE1 ,isnull(sum(b.id),0) as total
FROM   @DateSequence a left join @tblData b on a.DATE1=b.datecolumn
group by a.DATE1

谢谢，