Sql 使用with子句时的表范围

下面是我存储过程的一部分

由于对象MyCount无效，我收到错误消息，请告诉我哪里出错

;With MyCount AS
        ( 
            Select DispatchToRegionId ,FolderNo, row_number() OVER(ORDER BY FolderNo DESC) as Row 
            from tblTransite where FolderNo = @VAL  group by DispatchToRegionId,FolderNo
        )

    select @cnt = COUNT(*) from MyCount     
    if @cnt = 0
    begin
         set @InvalidFolderNo = @VAL 
         print 'cnt -' + cast(@cnt as varchar(max) ) + 'invalid folder - ' +  cast(@InvalidFolderNo as varchar(max) )
        return
    end

    select @Region =( Select  top 1 DispatchToRegionId  from MyCount
                    order by Row desc  )

关于通用表表达式（CTE）的范围，明确说明如下内容：

---

一旦运行了第一个select查询，就不能再将CTE用于下一个查询。如果您想在多个查询中访问它，您可能需要考虑将数据存储在临时表或表变量中。

< p> <代码> MyCube <代码>仅供第一次查询之后使用。尝试选择此查询中所需的所有内容：

;With MyCount AS
        ( 
            Select DispatchToRegionId ,FolderNo, row_number() OVER(ORDER BY FolderNo DESC) as Row 
            from tblTransite where FolderNo = @VAL  group by DispatchToRegionId,FolderNo
        )
    SELECT 
          @cnt = (select  COUNT(*) from MyCount),
          @Region =( Select  top 1 DispatchToRegionId  from MyCount
                      order by Row desc  )

    if @cnt = 0
    begin
         set @InvalidFolderNo = @VAL 
         print 'cnt -' + cast(@cnt as varchar(max) ) + 'invalid folder - ' +  cast(@InvalidFolderNo as varchar(max) )
        return
    end

;With MyCount AS
        ( 
            Select DispatchToRegionId ,FolderNo, row_number() OVER(ORDER BY FolderNo DESC) as Row 
            from tblTransite where FolderNo = @VAL  group by DispatchToRegionId,FolderNo
        )
    SELECT 
          @cnt = (select  COUNT(*) from MyCount),
          @Region =( Select  top 1 DispatchToRegionId  from MyCount
                      order by Row desc  )

    if @cnt = 0
    begin
         set @InvalidFolderNo = @VAL 
         print 'cnt -' + cast(@cnt as varchar(max) ) + 'invalid folder - ' +  cast(@InvalidFolderNo as varchar(max) )
        return
    end