使用sp_executesql時列名無效

Question

當我嘗試在存儲過程中執行動態查詢時出現錯誤。

我的代碼是：

DECLARE @Query nvarchar(max) 
DECLARE @AllowanceBadge nvarchar(20) 
DECLARE @AllowFieldName nvarchar(50) 
DECLARE @Amount Decimal 
SET @AllowanceBadge ='SIP0980' 
SET @AllowFieldName ='xxxxx' 
SET @Amount = 100 

SET @Query = 'UPDATE tbl_PayrollTransaction SET '+ @AllowFieldName +' = '+convert(varchar,@Amount) + 'WHERE BadgeNumber = '+@AllowanceBadge 
      EXEC SP_EXECUTESQL @Query 

我收到以下錯誤

消息207，級別16，狀態1，行
無效的列名稱SIP0980「。

告訴我我錯了。

感謝

Answer 1

需要引號將SIP0890

DECLARE @Query nvarchar(max) 
DECLARE @AllowanceBadge nvarchar(20) 
DECLARE @AllowFieldName nvarchar(50) 
DECLARE @Amount Decimal 
SET @AllowanceBadge ='SIP0980' 
SET @AllowFieldName ='xxxxx' 
SET @Amount = 100 

SET @Query = 'UPDATE tbl_PayrollTransaction SET '+ @AllowFieldName +' = '+convert(varchar,@Amount) + 'WHERE BadgeNumber = '''+@AllowanceBadge+'''' 
      EXEC SP_EXECUTESQL @Query