如何在使用动态SQL的存储过程中修复'='附近的错误语法

Question

我试图向现有的存储过程中添加一些其他列。这不仅需要添加列，还需要创建LEFT JOIN子查询以收集在“销售和保修总计”中添加注释的其他列。现在，当我在存储过程中执行此代码时，SQL命令中出现错误。

我已经尝试打开一个新的查询窗口，并尝试以正确的格式重新创建查询以执行该查询，但是出现以下错误：消息102，级别15，状态1，第60行'+大小写为null（null）时，语法不正确。消息102，第15级，州1，第117行'+大小写不正确，如果为null（@TaxHeaders，'）='然后为'。]

我还尝试过在包含枢轴的T和T1 LEFT JOIN上方更改我的LEFT JOIN查询（SWT，GT）的位置。

CREATE Procedure [GP].[spInvoiceReprintsSummary] 
@CompanyKey varchar(2)=5, 
@ParentCustomerNum varchar(255)='BCAA01',       --'AAANYCITY',      --'AAANPENN01', --'CAAQUEBE01',     --'BCAA01',     --'CAAQUEBE01', 
@StartDateKey varchar(8)=20130306, 
@EndDateKey varchar(8)=20130315,
@TaxHeaders varchar(255)='HST,GST,PST,QST'      --'GST, QST'
As 
Begin
Declare @SQL as varchar(max)
Set @SQL = '
Select S.CompanyKey, S.TaxScheduleID, S.CustomerKey, S.ParentCustomerNum, S.StationID, S.CustomerName, S.DocumentTypeKey, S.DocumentNum, Case When Left(S.DocumentNum, 2)=''ST'' Then 0 ELSE 1 End As EligibleDiscount,S.ExtendedPrice,S.PurchaseOrderNum, DocumentDate, S.TaxAmount, SWT.SalesTotal, SWT.WarrantiesTotal, S.TerritoryId ' + case when isnull(@TaxHeaders,'') = '' then '' else ',' + @TaxHeaders end  + ' From
(
--Get distinct documents
Select --Top 100
SD.CompanyKey, SD.TaxScheduleID, CS.CustomerKey, CS.ParentCustomerNum, CS.StationID, CS.CustomerName, SD.DocumentTypeKey, SD.DocumentNum,SD.PurchaseOrderNum, convert(datetime,convert(varchar, DateKey, 112)) As DocumentDate,sum(SD.TaxAmount) as TaxAmount, sum(SD.ExtendedPrice) As ExtendedPrice, CS.TerritoryId From GP.SalesDetail SD
Inner Join GP.Customers CS
on SD.CustomerKey = CS.CustomerKey
Where CS.ParentCustomerNum= ''' + @ParentCustomerNum + ''' And SD.DateKey Between ' +  @StartDateKey + ' and ' +  @EndDateKey + ' And SD.CompanyKey = ' + @CompanyKey + ' And SD.PostStatus = 1 And SD.VoidStatus = 0
Group by SD.CompanyKey, SD.TaxScheduleID, CS.CustomerKey, CS.ParentCustomerNum, CS.StationID, CS.CustomerName, SD.DocumentTypeKey, SD.DocumentNum,SD.PurchaseOrderNum, convert(datetime,convert(varchar, DateKey, 112)), CS.TerritoryId
--Order By SD.PurchaseOrderNum, SD.DocumentTypeKey
) S
---Addition of sales and warranties totals
LEFT JOIN(

SELECT  CASE WHEN GroupName = ''SALES''  then sum(QuantitySold) else 0 end as SalesTotal,CASE WHEN GroupName = ''WARRANTIES'' then sum(QuantitySold) else 0 end as WarrantiesTotal, DocumentNum, CompanyKey FROM
(SELECT 
SD.QuantitySold , DocumentNum , SD.CompanyKey
,CASE WHEN I.userDefItemClass1 = ''BATTERY/RETURN'' AND SD.QuantitySold >= 0 THEN ''SALES'' 
WHEN I.userDefItemClass1 = ''BATTERY/RETURN'' AND SD.QuantitySold < 0 THEN ''RETURNS'' 
WHEN I.ItemNum = ''RESTOCKING FEE'' AND sd.ExtendedPrice >= 0 THEN ''RETURNS'' 
WHEN I.ItemNum = ''RESTOCKING FEE'' AND sd.ExtendedPrice < 0 THEN ''SALES''
WHEN I.userDefItemClass1 = ''WARRANTY'' THEN ''WARRANTIES''
WHEN I.userDefItemClass1 = ''NRF'' THEN ''RECYCLING FEES'' 
WHEN I.userDefItemClass1 = ''CORES'' THEN ''SPENT BATTERIES''
WHEN I.ItemNum IN (''PU2'',''PU4.3'') AND sd.ExtendedPrice > 0 THEN ''RETURNS'' 
WHEN I.ItemNum IN (''PU2'',''PU4.3'') AND sd.ExtendedPrice < 0 THEN ''SALES'' 
ELSE ''OTHER'' END AS GroupName
FROM GP.SalesDetail AS SD 
INNER JOIN GP.Items AS I ON SD.ItemKey = I.ItemKey 
Inner Join GP.Customers CS on SD.CustomerKey = CS.CustomerKey
WHERE
CS.ParentCustomerNum= '' + @ParentCustomerNum + '' And SD.DateKey Between ' +  @StartDateKey + ' and ' +  @EndDateKey + ' And SD.CompanyKey = ' + @CompanyKey + ' And SD.PostStatus = 1 And SD.VoidStatus = 0 
) GN
GROUP BY DocumentNum, GroupName, CompanyKey
) SWT
ON  S.Companykey = SWT.CompanyKey And S.DocumentNum = SWT.DocumentNum
Left join (
--Pivot the Tax Types
Select Companykey, DocumentTypeKey, DocumentNum ' + case when isnull(@TaxHeaders,'') = '' then '' else ',' + @TaxHeaders end  + ' From (
SELECT     SD.CompanyKey,TD.DocumentTypeKey, TD.DocumentNum, TS.TaxDetailLabel, SUM(TD.TaxAmount) AS TaxAmount
FROM         GP.TaxSchedules AS TS INNER JOIN
(SELECT     SD.CompanyKey, SD.TaxScheduleId, SD.DocumentTypeKey, SD.DocumentNum
FROM          GP.SalesDetail SD
Inner Join GP.Customers CS
on SD.CustomerKey = CS.CustomerKey
Where CS.ParentCustomerNum= ''' + @ParentCustomerNum + ''' And SD.DateKey Between ' +  @StartDateKey + ' and ' +  @EndDateKey + ' And SD.CompanyKey = ' + @CompanyKey + ' And SD.PostStatus = 1 And SD.VoidStatus = 0 
GROUP BY SD.CompanyKey, SD.TaxScheduleId, SD.DocumentTypeKey, SD.DocumentNum) AS SD 
ON TS.CompanyKey = SD.CompanyKey AND TS.TaxScheduleId = SD.TaxScheduleId 
INNER JOIN GP.TaxDetails AS TD ON TD.DocumentNum = SD.DocumentNum AND TD.DocumentTypeKey = SD.DocumentTypeKey AND 
TD.LineItemSequenceNum = 0 AND TD.TaxDetailID = TS.TaxDetailId AND TD.CompanyKey = TS.CompanyKey
GROUP BY SD.CompanyKey,TD.DocumentTypeKey,TD.DocumentNum, TS.TaxDetailLabel
) T
Pivot (sum(TaxAmount) For TaxDetailLabel In (' + case when isnull(@TaxHeaders,'') = '' then 'Tax' else @TaxHeaders end  + ')) as PVT
) T1
on S.Companykey = T1.CompanyKey And S.DocumentTypeKey = T1.DocumentTypeKey And S.DocumentNum = T1.DocumentNum'
--print @SQL
Exec (@SQL)
End
我希望原始结果集的输出包括SalesTotal和WarrantiesTotal的新列

我试图向现有的存储过程中添加一些其他列。这不仅需要添加列，还需要创建LEFT JOIN子查询以收集以下额外的列：...

Answer 1

替换