表达式类型数字对整理无效

Question

我正忙于不同数据库之间的 SQL 中的 UNION ALL。

SELECT     CostValue AS [COST OF SALES], Customer AS [CUSTOMER CODE], DocumentType AS [DOCUMENT TYPE], Invoice AS [INVOICE NO], InvoiceDate AS [INVOICE DATE], 
                  DATEPART(dd, InvoiceDate) AS [INVOICE DAY], Mass AS MASS, NetSalesValue AS SALES, NetSalesValue - CostValue AS [GROSS PROFIT], OrderType, 
                  QtyInvoiced AS QUANTITY, SalesOrder, StockCode AS [STOCK CODE], TrnMonth AS [FIN MONTH], TrnYear AS [FIN YEAR], TrnYear * 100 + TrnMonth AS YYYYMM, 
                  'SHP' AS COMPANY
FROM         SomeCompanyA.dbo.SalesDetail
WHERE     (LineType = 1) AND (TrnYear >= 2010)
UNION ALL
SELECT     CostValue AS [COST OF SALES], Customer AS [CUSTOMER CODE],     DocumentType AS [DOCUMENT TYPE], Invoice AS [INVOICE NO], InvoiceDate AS [INVOICE DATE], 
                  DATEPART(dd, InvoiceDate) AS [INVOICE DAY], Mass AS MASS, NetSalesValue AS SALES, NetSalesValue - CostValue AS [GROSS PROFIT], OrderType, 
                  QtyInvoiced AS QUANTITY, SalesOrder, StockCode AS [STOCK CODE], TrnMonth AS [FIN MONTH], TrnYear COLLATE DATABASE_DEFAULT AS [FIN YEAR], (TrnYear * 100) COLLATE database_default + TrnMonth AS YYYYMM, 
                  'SGF' AS COMPANY
FROM         SQLXXXXXX.SomeCompanyB.dbo.SalesDetail AS SalesDetail_1
WHERE     (LineType = 1) AND (TrnYear >= 2010)

我在执行“表达式类型数字对于 COLLATE 子句无效”时收到以下错误，我认为这是来自 (TrnYear * 100) COLLATE database_default + TrnMonth AS YYYYMM

我不知道如何整理它，因为我将其理解为串联而不是隐式转换。

请有人提供一些关于如何正确投射的建议。

我也看过这里在 CONCAT 中使用整理，但我看不出这将如何工作，因为我在这一年使用了一个运算符。

也许我错过了一些东西。任何意见，将不胜感激。

谢谢

Answer 1

COLLATE 用于文本类型，并且 (TrnYear * 100) 计算结果为数字。在使用 COLLATE 之前，尝试使用 CAST((TrnYear * 100) AS VARCHAR) 转换为 varchar。