SQL Server 2008 Proc在2005年失敗

Question

ALTER PROCEDURE [Lending].[uspHMDALarIncomeGet] (@ApplicationId int)
AS
BEGIN
    SET NOCOUNT ON
    SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED

    -- Total Income Data
    DECLARE @ApplicantId int = (SELECT AT.ApplicantId FROM Lending.Applicant AT WHERE AT.ApplicationId = @ApplicationId)

    SELECT
    I.Amount
    FROM Lending.Income I WHERE I.ApplicantId = @ApplicantId

END

你們知道如何編寫該過程才能在05年獲得成功嗎？

-斯科特

Answer 1

SQL2005沒有在同一語句中聲明和分配變量的語法。 你需要改變

  DECLARE @ApplicantId int = (SELECT ...

至

  DECLARE @ApplicantId int

  SELECT  @ApplicantId = AT.ApplicantId 
  FROM Lending.Applicant AT 
  WHERE AT.ApplicationId =   @ApplicationId

編輯：

我剛剛想到，如果有不止一行匹配AT.ApplicationId = @ApplicationId話，我可能會在語義上做一些AT.ApplicationId = @ApplicationId 。

DECLARE @ApplicantId int

SET  @ApplicantId = (SELECT AT.ApplicantId ...

將保留原始語義並在該事件中導致錯誤。