在 sql server 2008 中销售 12 个月，最多销售答案

【问题标题】：12 months sale and max of them in sql server 2008在 sql server 2008 中销售 12 个月，最多销售
【发布时间】：2016-09-01 06:25:31
【问题描述】：

我有一个查询要找出来自salesdata table 的Material wiseandMonth wise 数据

样本

我可以找到以下数据

MaterialNo  Jan   Feb   Mar   Apr   May   Jun   Jul  Aug  Sep  Oct  Nov  Dec  
1           10    15    20    30    40    45    56   85   100  95   42   32   
2           12    20    86    32    45    42    62   74   86   42   84   62
3           15    20    46    54    46    42    19   0    62   75   94   98

我想要 SQL SERVER 2008 R2 中的最后两列（MaxSale、MaxSaleMonth）

MaterialNo  Jan   Feb   Mar   Apr   May   Jun   Jul  Aug  Sep  Oct  Nov  Dec  MaxSale   MaxSaleMonth
1           10    15    20    30    40    45    56   85   100  95   42   32   100       Sep
2           12    20    86    32    45    42    62   74   86   42   84   62   86        Mar
3           15    20    46    54    46    42    19   0    62   75   94   98   98        Dec

请给我建议最简单的解决方案。

我的当前查询如下

Select 
MaterialNo,
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Jan-2015' AND  '31-Jan-2015' THEN SalesData.iQty  ELSE 0 END) AS [Jan],
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Feb-2015' AND  '28-Feb-2015' THEN SalesData.iQty  ELSE 0 END) AS [Feb],
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Mar-2015' AND  '31-Mar-2015' THEN SalesData.iQty  ELSE 0 END) AS [Mar],
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Apr-2015' AND  '30-Apr-2015' THEN SalesData.iQty  ELSE 0 END) AS [Apr]
From SalesData
Group By
MaterialNo

【问题讨论】：

请发布您的查询。建议：创建子查询来获取你需要的数据。
我发布我现有的查询
@Hirengardhariya 我已经更新了我的答案。首先，您必须创建一个函数，然后在您的选择查询中使用。

标签： sql sql-server sql-server-2008 sql-server-2008-r2

【解决方案1】：

使用 Pivot .. 您可以找到最简单的方法。

select max(month), row_max = max(val)
from yourtable
pivot
(
  salesmonth 
  for col in (C1, C2, C3, C4..c12)
) piv
group by id

【讨论】：

【解决方案2】：

; with
cte as
(
    select  MaterialNo, 
            SalesMth    = month(dSalesDate),
            iQty        = sum(iQty)
    from    SalesData
    where   dSalesDate  >= '2015-01-01'
    and     dSalesDate  <  '2016-01-01'
    group by MaterialNo, month(dSalesDate)
)
select  MaterialNo, [1] as Jan, [2] as Feb, [3] as Mar, . . . . .
        iQty as MaxSales, SalesMth as MaxMth
from    cte c
    pivot
    (
        sum(iQty)
        for SalesMth in ([1], [2], [3], [4], [5], . . .. )
    ) p
    outer apply
    (
        select  top 1 SalesMth, iQty 
        from    cte x
        where   x.MaterialNo    = MaterialNo
        order by iQty desc
    ) m

【讨论】：

【解决方案3】：

您可以使用以下查询来获取结果。首先创建一个在选择查询中使用的函数。

CREATE FUNCTION [dbo].GREATEST(@val1 int, @val2 int,@val3 int, @val4 int,@val5 int, @val6 int,@val7 int, @val8 int,@val9 int, @val10 int,@val11 int, @val12 int) returns int as begin
declare @intMax as int
set @intMax = @val1
if @val2 > @intMax
    set @intMax = @val2
if @val3 > @intMax
    set @intMax = @val3
if @val4 > @intMax
    set @intMax = @val4
if @val5 > @intMax
    set @intMax = @val5
if @val6 > @intMax
    set @intMax = @val6
if @val7 > @intMax
    set @intMax = @val7
if @val8 > @intMax
    set @intMax = @val8
if @val9 > @intMax
    set @intMax = @val9
if @val10 > @intMax
    set @intMax = @val10
if @val11 > @intMax
    set @intMax = @val11
if @val12 > @intMax
    set @intMax = @val12
return @intMax
end

SELECT MaterialNo, Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec , GREATEST(score1, score3, score3, score4) AS MaxSale   
CASE GREATEST(Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec) 
     WHEN Jan THEN 'Jan'
     WHEN Feb THEN 'Feb'
     WHEN Mar THEN 'Mar'
     WHEN Apr THEN 'Apr'
     WHEN May THEN 'May'
     WHEN Jun THEN 'Jun'
     WHEN Jul THEN 'Jul'
     WHEN Aug THEN 'Aug'
     WHEN Sep THEN 'Sep'
     WHEN Oct THEN 'Oct'
     WHEN Nov THEN 'Nov'
     WHEN Dec THEN 'Dec'
   END AS MaxSaleMonth
FROM salesdata

【讨论】：

您确定GREATEST() 在SQL Server 中可用吗？
No GREATEST 在 SQL Server 中不可用，但您可以创建一个名为 GREATEST 的函数，然后使用您可以在函数中编写登录名。这是获得结果的最简单方法

【解决方案4】：

这会有所帮助..

SELECT monthdata.MaterialNo,[Jan],[Feb],[Mar],[Apr],MaxSale,MaxSaleMonth
FROM (
Select 
MaterialNo,
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Jan-2015' AND  '31-Jan-2015' THEN SalesData.iQty  ELSE 0 END) AS [Jan],
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Feb-2015' AND  '28-Feb-2015' THEN SalesData.iQty  ELSE 0 END) AS [Feb],
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Mar-2015' AND  '31-Mar-2015' THEN SalesData.iQty  ELSE 0 END) AS [Mar],
SUM(CASE WHEN CAST(SalesData.dSalesDate AS DATE) BETWEEN '01-Apr-2015' AND  '30-Apr-2015' THEN SalesData.iQty  ELSE 0 END) AS [Apr]
From SalesData
Group By MaterialNo
)monthdata
INNER JOIN 
(
SELECT MaterialNo ,unitsSold AS MaxSale   
,mnt AS MaxSaleMonth
FROM (
SELECT  MaterialNo,ROW_NUMBER() OVER ( PARTITION BY MaterialNo
ORDER BY SUM(iQty) DESC
)rowid,SUM(iQty) unitsSold
,DATENAME(MONTH,CAST(CAST (Month(dSalesDate) AS VARCHAR )+'/01/'+CAST(YEAR(dSalesDate)  AS VARCHAR )AS DATETIME)) AS mnt
FROM SalesData
WHERE  dSalesDate BETWEEN '01-Jan-2015'
AND '30-Apr-2015'
GROUP BY MaterialNo,Month(dSalesDate),YEAR(dSalesDate)
) a
WHERE rowid=1
)maxdata ON maxdata.MaterialNo=monthdata.MaterialNo

【讨论】：