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首先,我对动态 SQL 没有任何经验,这是我的第一次尝试。我正在查看这里的答案,但各种纠正此问题的尝试都失败了,这让我更加困惑。

我创建了一个带有循环月份 [#Month] 的表,还创建了一个事务代码表 [#Tran_codes],我需要将这些与事务数据结合起来,但我收到了无效的对象名称“#Trans1”。我知道这是由于临时表超出范围,但我不知道如何修复它。

这是给我带来问题的代码,请您帮忙纠正或建议我在哪里可以阅读正确的语法以使用?

   -------------------------------------------------------------------
    PRINT '03. Create a Table with all Tran codes as per "02", with transaction amounts, per month-end date for past 25 months as set out by "01" '
    -------------------------------------------------------------------


    DECLARE 
         @i              INT
        ,@j              INT
        ,@Monthend_Date  varchar(50)
        ,@Month_String   VARCHAR(6)
        ,@SQL            VARCHAR(MAX)

    SET @i = 1
    SET @j = (SELECT MAX(RowNum) FROM #Month)

    WHILE @i <= @j
    BEGIN

        SET @Month_String   = (SELECT MonthString FROM #Month WHERE RowNum = @i)     

    IF @i = 1
    BEGIN

    ----------------------------------------------------------
    SET @SQL = '
            IF OBJECT_ID(''tempdb..#Trans1'') IS NOT NULL DROP TABLE #Trans
              CREATE TABLE #Trans1
              WITH
              (
               DISTRIBUTION = HASH(Tran_Date_Key)
               ,LOCATION = USER_DB
              )
               AS   
               SELECT
            Monthend_Date = ''' + CONVERT(Varchar(30), @Monthend_Date) + '''
            ,Trans.Tran_Code_Key
            ,TD.Tran_Code
            ,TD.Description
            ,Amount
               FROM DATASTORE_MIS.[dbo].vwF_Transaction_'+ @Month_String +' Trans
            inner join DATASTORE_MIS.[dbo].vwF_Transaction_Description_'+ @Month_String +' as TD on Trans.Journal_No = TD.Journal_No
                                                                                    AND Trans.[Tran_Date_Key] = TD.[Tran_Date_Key]
               '

    EXEC (@SQL)

End
ELSE
BEGIN

    SET @SQL = '

        INSERT INTO #Trans1
        SELECT
        Monthend_Date = ''' + CONVERT(Varchar(30), @Monthend_Date) + '''
        ,Trans.Tran_Code_Key
        ,TD.Tran_Code
        ,TD.Description
        ,Amount
        FROM DATASTORE_MIS.[dbo].vwF_Transaction_'+ @Month_String +' Trans
        inner join DATASTORE_MIS.[dbo].vwF_Transaction_Description_'+ @Month_String +' as TD on Trans.Journal_No = TD.Journal_No
                                                                                    AND Trans.[Tran_Date_Key] = TD.[Tran_Date_Key]
               '
    EXEC (@SQL)
END

SET @i = @i + 1

END
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