Как рассчитать среднее значение столбца, а затем включить его в запросе на выборку в SQL

Question

У меня есть запрос, где результат, как следующий

saledate Amount TRVal 
20/05/2013 $6250.78 4 
21/05/2013 $4562.23 4 
22/05/2013 $565.32 6 
23/05/2013 $85.36 8 
24/05/2013 $56.36 5 

Я хочу, чтобы среднее значение суммы, как

saledate Amount TRVal AvgVal 
20/05/2013 $6250.78 4  2304.01 
21/05/2013 $4562.23 4  2304.01 
22/05/2013 $565.32 6  2304.01 
23/05/2013 $85.36 8  2304.01 
24/05/2013 $56.36 5  2304.01 

Я знаю, чтобы вычислить значение avg, но я хочу, чтобы он включался в результат запроса.

Запрос я использую это

Select ISNULL([SaleDate],'Totals') AS [Totals], TempSaleDate, Domestic, Export, Import, TotalJobs, 
        '$' + CAST(CAST(Value AS DECIMAL(10,2)) AS VARCHAR(15)) Value, 
        '$' + CAST(CAST(ValueNOGST AS DECIMAL(10,2)) AS VARCHAR(15)) ValueNOGST, 
        Cancelled, 
        '$' + CAST(CAST(CancelledValue AS DECIMAL(10,2)) AS VARCHAR(15)) CancelledValue, 
        '$' + CAST(CAST(CancelledValueNOGST AS DECIMAL(10,2)) AS VARCHAR(15)) CancelledValueNOGST, 
        '$' + CAST(CAST(TotalValue AS DECIMAL(10,2)) AS VARCHAR(15)) TotalValue, 
        '$' + CAST(CAST(TotalValueNOGST AS DECIMAL(10,2)) AS VARCHAR(15)) TotalValueNOGST, 
        (select AVG(TotalValue) from sales) as FFF, 
        TotalGST, TotalValue+TotalGST TotalWithNOGSTCheck 

        FROM (

        select convert(varchar(10), sales.saledate, 103) [SaleDate],max(sales.SaleDate) [TempSaleDate], SUM(sales.Domestic) [Domestic], SUM(sales.Export) [Export], SUM(sales.Import) [Import], 
        (SUM(sales.Domestic) + SUM(sales.Export) + SUM(sales.Import)) AS TotalJobs, 
        SUM(sales.Value) [Value], SUM(sales.ValueNoGST) [ValueNOGST], 
        Sum(sales.Cancelled) [Cancelled], 
        sum(sales.cancelledValue) [CancelledValue], 
        sum(sales.CancelledValueNOGST) [CancelledValueNOGST], 
        SUM(sales.totalValue) [TotalValue], 
        SUM(sales.TotalValueNOGST) [TotalValueNOGST], 
        SUM(sales.FGST) [FreightGST],SUM(sales.WGST) [WarrantyGST],SUM(sales.TGST) [TotalGST] 
        from 
        (
        select TOP 100 PERCENT max(j.SaleDate) SaleDate, 
        case when max(oc.Code) = 'AU' and max(dc.Code) = 'AU' then 1 else 0 end [Domestic], 
        case when max(oc.Code) = 'AU' and max(dc.Code) <> 'AU' then 1 else 0 end [Export], 
        case when max(oc.Code) <> 'AU' and max(dc.Code) = 'AU' then 1 else 0 end [Import], 
        1 [Total], 
        MAX(charges.FreightGst) [FGST], 
        MAX(charges.warrantygst) [WGST], 
        MAX(charges.totalgst) [TGST], 
        max(ic.Total-charges.totalgst) [Value], 
         max(ic.Total) [ValueNoGST], 
        case when max(c.CancelDate) is not null then 1 else 0 end [Cancelled], 

        case when max(c.CancelDate) is not null then max(ic.Total) else 0 end [CancelledValueNOGST], 
        case when max(c.CancelDate) is null then max(ic.Total) else 0 end [TotalValueNOGST], 

        case when max(c.CancelDate) is not null then max(ic.Total-charges.totalgst) else 0 end [CancelledValue], 
        case when max(c.CancelDate) is null then max(ic.Total-charges.totalgst) else 0 end [TotalValue] 
        from invoices i 
        left join Jobs j on i.JobKey = j.JobKey 
        inner join tasks t on j.jobkey = t.jobkey 
        inner join Consignments c on t.TaskKey = c.consignmentkey 
        inner join places op on c.originplacekey = op.placekey 
        inner join places dp on c.destinationplacekey = dp.placekey 
        inner join places oC on dbo.ParentPlaceKey(c.originPlaceKey) = oc.placekey 
        inner join places dC on dbo.ParentPlaceKey(c.destinationplacekey) = dc.placekey 
        left join (select consignmentKey, sum(Value) [Value] from ConsignmentItems ci group by consignmentkey) ci on ci.ConsignmentKey = c.ConsignmentKey 
        left join (
        select invoicekey, 
        sum(case when ci.ChargeItemKey = 'FRT_SLL' then oc.Value else 0 end) [Freight], 
        sum(case when ci.ChargeItemKey = 'WTY_SLL' then oc.Value else 0 end) [Warranty], 
        sum(case when ci.ChargeType = 4 then oc.Value else 0 end) [Total] 
        from InvoiceCharges ic 
        left join OptionCharges oc on ic.OptionChargeKey = oc.OptionChargeKey 
        left join ChargeItems ci on oc.ChargeItemKey = ci.ChargeItemKey 
        group by invoicekey 
        ) ic on ic.invoicekey = i.InvoiceKey 

        left join (
        select OptionKey [OptionKey], 
        sum(case when ci1.ChargeItemKey = 'FRT_TX1' then oc1.Value else 0 end) [FreightGst], 
        sum(case when ci1.ChargeItemKey = 'WTY_TX1' then oc1.Value else 0 end) [WarrantyGst], 
        sum(case when ci1.ChargeType = 3 then oc1.Value else 0 end) [TotalGst] 
        from OptionCharges oc1 
        left join ChargeItems ci1 on oc1.ChargeItemKey = ci1.ChargeItemKey 
        group by optionkey 
        ) charges on charges.OptionKey = c.SelectedOptionKey 


        where 
        j.SaleDate >= '20-May-2013' 
        and 
        j.operationalstorekey = dbo.StoreCode('AU-WEB') 
        and j.saledate is not null and SelectedOptionKey is not null 
        group by j.jobkey 
        ) sales 
        group by convert(varchar(10), sales.saledate, 103) WITH ROLLUP 
        ) AS SalesData order by TempSaleDate 

Я пытался добавить

(SELECT avg(TotalValue) FROM SalesData) as avgVal 

но бросает invalid object name SalesData.

Не уверен, что я делаю неправильно.

Answer 1

SELECT saledate, Amount, TRVal, (SELECT avg(amount) FROM tableA) as AvgVal FROM tableA 

или

SELECT saledate, Amount, TRVal, avgVal FROM tableA 
INNER JOIN (SELECT avg(amount) as AvgVal FROM tableA) x 

Edited добавить:

Вы должны заменить SalesData с именем таблицы вы вы запрашиваете (которые вы удалили из вашего примера:

FROM(
-- whatever name you put here is the one you need in place of SalesData 
) 

Отредактировано добавить:

Вашего ЕК осложнено, так MSSQL 2008 добавил спецификатор как раз для таких случаев:

;WITH thisTable AS (
    -- put your FROM clause in here 
) 
SELECT /* list of fields */, (SELECT AVG(amount) FROM thisTable) as AvgVal 
FROM thisTable 

Так что для вас:

; WITH thisTable AS (
select convert(varchar(10), sales.saledate, 103) [SaleDate],max(sales.SaleDate) [TempSaleDate], 
    SUM(sales.Domestic) [Domestic], SUM(sales.Export) [Export], SUM(sales.Import) [Import], 
    (SUM(sales.Domestic) + SUM(sales.Export) + SUM(sales.Import)) AS TotalJobs, 
    SUM(sales.Value) [Value], SUM(sales.ValueNoGST) [ValueNOGST], 
    Sum(sales.Cancelled) [Cancelled], 
    sum(sales.cancelledValue) [CancelledValue], 
    sum(sales.CancelledValueNOGST) [CancelledValueNOGST], 
       SUM(sales.totalValue) [TotalValue], 
       SUM(sales.TotalValueNOGST) [TotalValueNOGST], 
    SUM(sales.FGST) [FreightGST],SUM(sales.WGST) [WarrantyGST],SUM(sales.TGST) [TotalGST] 
from 
(
    select TOP 100 PERCENT max(j.SaleDate) SaleDate, 
    case when max(oc.Code) = 'AU' and max(dc.Code) = 'AU' then 1 else 0 end [Domestic], 
    case when max(oc.Code) = 'AU' and max(dc.Code) <> 'AU' then 1 else 0 end [Export], 
    case when max(oc.Code) <> 'AU' and max(dc.Code) = 'AU' then 1 else 0 end [Import], 
    1 [Total], 
       MAX(charges.FreightGst) [FGST], 
       MAX(charges.warrantygst) [WGST], 
       MAX(charges.totalgst) [TGST], 
       max(ic.Total-charges.totalgst) [Value], 
        max(ic.Total) [ValueNoGST], 
    case when max(c.CancelDate) is not null then 1 else 0 end [Cancelled], 

    case when max(c.CancelDate) is not null then max(ic.Total) else 0 end [CancelledValueNOGST], 
    case when max(c.CancelDate) is null then max(ic.Total) else 0 end [TotalValueNOGST], 

    case when max(c.CancelDate) is not null then max(ic.Total-charges.totalgst) else 0 end [CancelledValue], 
    case when max(c.CancelDate) is null then max(ic.Total-charges.totalgst) else 0 end [TotalValue] 
       from invoices i 
       left join Jobs j on i.JobKey = j.JobKey 
       inner join tasks t on j.jobkey = t.jobkey 
       inner join Consignments c on t.TaskKey = c.consignmentkey 
       inner join places op on c.originplacekey = op.placekey 
       inner join places dp on c.destinationplacekey = dp.placekey 
       inner join places oC on dbo.ParentPlaceKey(c.originPlaceKey) = oc.placekey 
       inner join places dC on dbo.ParentPlaceKey(c.destinationplacekey) = dc.placekey 
       left join (select consignmentKey, sum(Value) [Value] from ConsignmentItems ci group by consignmentkey) ci on ci.ConsignmentKey = c.ConsignmentKey 
       left join (
       select invoicekey, 
       sum(case when ci.ChargeItemKey = 'FRT_SLL' then oc.Value else 0 end) [Freight], 
       sum(case when ci.ChargeItemKey = 'WTY_SLL' then oc.Value else 0 end) [Warranty], 
       sum(case when ci.ChargeType = 4 then oc.Value else 0 end) [Total] 
       from InvoiceCharges ic 
       left join OptionCharges oc on ic.OptionChargeKey = oc.OptionChargeKey 
       left join ChargeItems ci on oc.ChargeItemKey = ci.ChargeItemKey 
       group by invoicekey 
       ) ic on ic.invoicekey = i.InvoiceKey 

       left join (
       select OptionKey [OptionKey], 
       sum(case when ci1.ChargeItemKey = 'FRT_TX1' then oc1.Value else 0 end) [FreightGst], 
       sum(case when ci1.ChargeItemKey = 'WTY_TX1' then oc1.Value else 0 end) [WarrantyGst], 
       sum(case when ci1.ChargeType = 3 then oc1.Value else 0 end) [TotalGst] 
       from OptionCharges oc1 
       left join ChargeItems ci1 on oc1.ChargeItemKey = ci1.ChargeItemKey 
       group by optionkey 
       ) charges on charges.OptionKey = c.SelectedOptionKey 


       where 
       j.SaleDate >= '20-May-2013' 
       and 
       j.operationalstorekey = dbo.StoreCode('AU-WEB') 
       and j.saledate is not null and SelectedOptionKey is not null 
       group by j.jobkey 
       ) sales 
       group by convert(varchar(10), sales.saledate, 103) WITH ROLLUP 
       ) 
/* end of definition of thisTable */ 
) 
/* here's your select */ 
Select ISNULL([SaleDate],'Totals') AS [Totals], TempSaleDate, Domestic, Export, Import, TotalJobs, 
       '$' + CAST(CAST(Value AS DECIMAL(10,2)) AS VARCHAR(15)) Value, 
       '$' + CAST(CAST(ValueNOGST AS DECIMAL(10,2)) AS VARCHAR(15)) ValueNOGST, 
       Cancelled, 
       '$' + CAST(CAST(CancelledValue AS DECIMAL(10,2)) AS VARCHAR(15)) CancelledValue, 
       '$' + CAST(CAST(CancelledValueNOGST AS DECIMAL(10,2)) AS VARCHAR(15)) CancelledValueNOGST, 
       '$' + CAST(CAST(TotalValue AS DECIMAL(10,2)) AS VARCHAR(15)) TotalValue, 
       '$' + CAST(CAST(TotalValueNOGST AS DECIMAL(10,2)) AS VARCHAR(15)) TotalValueNOGST, 
/* here's the AVG() */ 
       (select AVG(TotalValue) from thisTable) as FFF, 
       TotalGST, TotalValue+TotalGST TotalWithNOGSTCheck, 

FROM thisTable 

Answer 2

это самый простой код , Он может быть оптимизирован, если он слишком медленный ...

select saledate, amount, trval, (select avg(amount) from yourtable) as AvgVal from yourtable; 

Answer 3

Пользовательский оконный AVG на совокупности SUM.

SELECT 
    DATEADD(dd, DATEDIFF(dd, 0, saledate), 0) 
    , SUM(something) AS Amount 
    , ?? AS TRVal -- no idea what it is 
    , AVG(SUM(something)) OVER() AS AvgVal 
FROM MyTable -- or whatever 
GROUP BY DATEDIFF(dd, 0, saledate)