TSQL报告 - 按周计算数据？

Question

我正在编写一份报告,需要显示一周的收据,按地点分组,每周的每一天都有一个单独的列.这将通过SSRS和SQL Server 2008 R2提供.最终结果应如下所示:(但对于一周中的所有7天)

Location    Monday    Tuesday
Building3   $100      $75
Building4   $25       $35
Building5   $105      $21

我编写了以下T-SQL SELECT语句,以从报告表变量(@reporting)中获取此数据.然后打算按位置对输出进行分组,以获得上面显示的布局.

原始数据列出了单行中的收货日期,总计和位置.我想转动数据,以便星期几显示在最前面.必须有一个比你在下面看到的更好的方法.有帮助吗？

    SELECT
        LocationKey.Location
        ,Sunday.Cost as Sunday
        ,Monday.Cost as Monday
    FROM 

        (
            SELECT DISTINCT Location 
            FROM @reporting
            WHERE Location NOT IN ('Building01', 'Building02', '')
        ) AS LocationKey

    LEFT JOIN  

(SELECT  

sunday.Location
,sunday.Cost

FROM @reporting as sunday (nolock) 

WHERE DATEPART(weekday,sunday.ReceiptDate)= 1

        ) AS Sunday
        ON Sunday.Location = LocationKey.Location

LEFT JOIN  

(SELECT  
Monday.Location,
Monday.Cost

FROM @reporting as Monday (nolock) 

WHERE DATEPART(weekday,Monday.ReceiptDate)= 2

        ) AS Monday
        ON Monday.Location = LocationKey.Location

Answer 1

也许这样做的最简单方法是支点上DATENAME.

SELECT location, 
       [Saturday], 
       [Sunday], 
       [Monday], 
       [Tuesday], 
       [Wednesday], 
       [Thursday], 
       [Friday] 
FROM   (SELECT COST, 
               location, 
               Datename(weekday, receiptdate) DAY 
        FROM   @reporting 
        WHERE  location NOT IN ( 'Building01', 'Building02', '' )) p 
      PIVOT ( 
        SUM (COST) 
        FOR DAY IN ( [Saturday], [Sunday], [Monday], [Tuesday], [Wednesday], 
       [Thursday], [Friday]) ) pvt 

看到它在这个data.se查询中工作

另一种方法是使用多个自连接但不使用子查询.这里的关键是Join Clause

SELECT LocationKey.Location,
       SUM(Sunday.Cost) As [Sunday],
       SUM(Monday.Cost) As [Monday],
       SUM(Tuesday.Cost) As [Tuesday],
       SUM(Wednesday.Cost) As [Wednesday],
       SUM(Thursday.Cost) As [Thursday],
       SUM(Friday.Cost) As [Friday],
       SUM(Saturday.Cost) As [Saturday]
FROM
      (SELECT DISTINCT Location 
            FROM @reporting
            WHERE Location NOT IN ('Building01', 'Building02', '')) LocationKey
      LEFT JOIN @Reporting Sunday 
      ON LocationKey.Location = Sunday.Location
         AND DATEPART(weekday,sunday.ReceiptDate)= 1
      LEFT JOIN @Reporting Monday
      ON LocationKey.Location = Monday.Location
         AND DATEPART(weekday,Monday.ReceiptDate)= 2
      LEFT JOIN @Reporting Tuesday
      ON LocationKey.Location = Tuesday.Location
         AND DATEPART(weekday,Tuesday.ReceiptDate)= 3
      LEFT JOIN @Reporting Wednesday
      ON LocationKey.Location = Wednesday.Location
         AND DATEPART(weekday,Wednesday.ReceiptDate)= 4
      LEFT JOIN @Reporting Thursday
      ON LocationKey.Location = Thursday.Location
         AND DATEPART(weekday,Thursday.ReceiptDate)= 5
      LEFT JOIN @Reporting Friday
      ON LocationKey.Location = Friday.Location
         AND DATEPART(weekday,Friday.ReceiptDate)= 6         
      LEFT JOIN @Reporting Saturday
      ON LocationKey.Location = Saturday.Location
         AND DATEPART(weekday,Saturday.ReceiptDate)= 7

您应该注意,您应该调用SET DATEFIRST或使用偏移量@@DATEFIRST来保护您的查询免受可能的默认设置更改和破坏您的查询时使用DATEPART(weekday..