Top N百分比和最高M百分比Asc

Question

我想獲得前5個客戶類型並顯示每個5個客戶類型的數據，餘額（可以是任意數量），我將它們顯示爲「其他客戶類型」。我的問題是，因爲行可能是隨機的，並不能完全被數字整除，那麼在「其他」組中出現的前5位中可能會重複的值超過總銷售額。

數據也被呈現在SSRS

我的代碼使用TOP PERCENT：

select final.[description], sum(final.YTDSales$) as YTDSales$ 

FROM(

select top 25 percent pytd2.[Description], sum(pytd2.YTDSales$) as YTDSales$ 

FROM(


-- ytd sales 

select re.SIC_Desc as [description], sum((ol.NetAmt - ol.WhlOrdDiscAmt)/@exrt) AS YTDSales$ 

from dbo.order_line_invoice ol 

INNER JOIN dbo.Vendor vd ON ol.Cono = vd.Cono AND vd.VendId = ol.VendId 
inner join Product_Warehouse pw on ol.ProdId = pw.prodid and ol.WhseId = pw.whseid and ol.cono = pw.cono 

inner join Customer c on ol.custId = c.CustId and ol.Cono = c.Cono 

left join MDData.dbo.RetailEnvironment re on c.SIC = re.SIC 
where ol.InvoiceDate BETWEEN @FStartDate AND @EndDate AND ol.Cono = 1 and ol.VendId IN(@Vendid) and ol.prodcatid NOT LIKE 'GP%' 

group by re.SIC_Desc 
)PYTD2  

group by pytd2.[description] 

order by sum(pytd2.YTDSales$) DESC 

UNION ALL 

select top 75 percent 'Other' as 'description', sum(pytd.YTDSales$) as YTDSales$ 
FROM(

-- ytd sales 

select re.SIC_Desc as [description], sum((ol.NetAmt - ol.WhlOrdDiscAmt)/@exrt) AS YTDSales$ 

from dbo.order_line_invoice ol 

INNER JOIN dbo.Vendor vd ON ol.Cono = vd.Cono AND vd.VendId = ol.VendId 

inner join Product_Warehouse pw on ol.ProdId = pw.prodid and ol.WhseId = pw.whseid and ol.cono = pw.cono 

inner join Customer c on ol.custId = c.CustId and ol.Cono = c.Cono 

left join MDData.dbo.RetailEnvironment re on c.SIC = re.SIC 

where ol.InvoiceDate BETWEEN @FStartDate AND @EndDate AND ol.Cono = 1 and ol.VendId IN(@Vendid) and ol.prodcatid NOT LIKE 'GP%' 

group by re.SIC_Desc 
)PYTD  

group by Ppytd.[description] 

order by sum(pytd.YTDSales$)  

)final          

group by final.[Description] 

order by sum(final.YTDSales$) DESC 

我的結果： As you can see the Large Independent and Other has the same figure of $2280.60 in YTDQty since it is being repeated

Answer 1

我想象這樣的事情：

with data as (
    -- your base query here grouped and summarized by customer type 
), rankedData as (
    select *, row_number() over (order by YTDSales$ desc) as CustTypeRank 
    from data 
) 
select 
    case when CustTypeRank <= 5 then min("description") else 'Others' end as "description", 
    sum(YTDSales$) as YTDSales$ 
from rankedData 
group by case when CustTypeRank <= 5 then CustTypeRank else 999 end 
order by case when CustTypeRank <= 5 then CustTypeRank else 999 end 

Answer 2

我實際上使用RANK來代替w HICH偉大的工作： -

select 0 as rankytd, RANK() OVER(ORDER BY sum(ol.NetAmt - ol.WhlOrdDiscAmt) DESC) as rankpytd, re.sic, ol.VendId, vd.name, re.SIC_Desc As [description], 0 AS YTDQty, sum(ol.Quantity) AS PYTDQty 
from dbo.order_line_invoice ol 
INNER JOIN dbo.Vendor vd ON ol.Cono = vd.Cono AND vd.VendId = ol.VendId 
inner join dbo.Product p on ol.Cono = p.Cono and ol.prodid = p.ProdId and p.ProdCatId in (@pcat) 
inner join Product_Warehouse pw on ol.ProdId = pw.prodid and ol.WhseId = pw.whseid and ol.cono = pw.cono 
inner join Customer c on ol.custId = c.CustId and ol.Cono = c.Cono 
left join MDData.dbo.RetailEnvironment re on c.SIC = re.SIC 
where ol.InvoiceDate BETWEEN DATEADD(YEAR, -1,@FStartDate) AND DATEADD(YEAR, -1, @EndDate) and ol.Cono = 1 and ol.VendId IN(@Vendid) and ol.prodcatid NOT LIKE 'GP%' 
group by re.sic, ol.VendId, vd.Name, re.SIC_Desc