Sql递归错误无效列名CTE

Question

我已经完成了下面的CTE它工作正常，但我需要得到最后一个节点的总和，所以问题是当我添加T1.Debit列计算其给我一个无效的列名称'借记'！在线***

ALTER Function [dbo].[SubTopics_GetSum] 
-- Add the parameters for the stored procedure here 
    (
    @TopicID int 
    ) 
RETURNS TABLE 
AS 
RETURN 
(
    -- Add the SELECT statement with parameter references here 
    WITH cte 
    AS (
     SELECT 
      T1.TopicID, 
      T1.Code, 
      T1.Description, 
      T1.ParentID, 
      T1.ParentID AS NewParentID, 
      CAST(T1.Code AS nvarchar(MAX)) AS TopicCode, 
      CAST(T1.Description AS nvarchar(MAX)) AS TopicDescription, 
      isnull((Accounting.DocumentDetail.Debit),0) AS Debit, 
      isnull((Accounting.DocumentDetail.Credit),0) AS Credit 
     FROM Accounting.Topics AS T1 
      LEFT OUTER JOIN Accounting.DocumentDetail 
       ON T1.TopicID = Accounting.DocumentDetail.TopicFK 
     where NOT EXISTS(
         SELECT 
          T2.TopicID, 
          T2.Code, 
          T2.Description, 
          T2.ParentID, 
          isnull((Accounting.DocumentDetail.Debit),0) AS Debit, 
          isnull((Accounting.DocumentDetail.Credit),0) AS Credit 
         FROM Accounting.Topics AS T2 
          LEFT OUTER JOIN Accounting.DocumentDetail 
           ON T2.TopicID = Accounting.DocumentDetail.TopicFK 
         WHERE (ParentID = T1.TopicID) 
         ) 
     UNION ALL 
     SELECT 
      c.TopicID, 
      c.Code, 
      c.Description, 
      c.ParentID, 
      T1.ParentID AS NewParentID, 
      CAST(T1.Code AS nvarchar(MAX)) + c.TopicCode AS TopicCode, 
      CAST(T1.Description AS nvarchar(MAX)) + ' - ' + c.TopicDescription AS TopicDescription, 
      *** isnull((T1.Debit),0)+isnull(c.Debit,0) AS Debit,--IN THIS LINE error 'Invalid Column Name 'Debit'' 
      isnull(c.Credit,0) AS Credit 
     FROM cte AS c 
      INNER JOIN Accounting.Topics AS T1 
       ON T1.TopicID = c.NewParentID 
     ) 

    SELECT isnull(sum(Debit),0)AS Debit, 
     isnull(sum(Credit),0)AS Credit 
    FROM cte AS c 
    WHERE (NewParentID = @TopicID) 
) 

让我知道什么是错的，我的代码混淆了!!!

实际上它不会返回我最后一个节点的借方，贷方...总和！ 检查以下PIC

Answer 1

我想下面的代码会有所帮助，

ALTER FUNCTION [dbo].[Subtopics_getsum] 
-- Add the parameters for the stored procedure here 
(@TopicID INT) 
returns TABLE 
AS 
    RETURN ( 
     -- Add the SELECT statement with parameter references here 
     WITH cte 
      AS (SELECT T1.topicid, 
         T1.code, 
         T1.description, 
         T1.parentid, 
         T1.parentid          AS 
         NewParentID 
         , 
         Cast(T1.code AS NVARCHAR(max)) 
         AS TopicCode, 
         Cast(T1.description AS NVARCHAR(max))   AS 
         TopicDescription, 
         Isnull((accounting.documentdetail.debit), 0) AS Debit, 
         Isnull((accounting.documentdetail.credit), 0) AS Credit 
       FROM accounting.topics AS T1 
         LEFT OUTER JOIN accounting.documentdetail 
            ON T1.topicid = 
             accounting.documentdetail.topicfk 
       WHERE NOT EXISTS(SELECT T2.topicid, 
             T2.code, 
             T2.description, 
             T2.parentid, 
    Isnull((accounting.documentdetail.debit), 0) 
    AS 
    Debit, 
    Isnull((accounting.documentdetail.credit), 0) AS 
    Credit 
    FROM accounting.topics AS T2 
    LEFT OUTER JOIN accounting.documentdetail 
    ON T2.topicid = 
    accounting.documentdetail.topicfk 
    WHERE (parentid = T1.topicid))) 
    SELECT Isnull(Sum(debit), 0) AS Debit, 
    Isnull(Sum(credit), 0)AS Credit 
    FROM cte AS c 
    WHERE (newparentid = @TopicID) 
    ) 

Answer 2

我想你Accounting.Topics还没有列Debit。

UPDTAE

ISNULL（（T1.Debit），0）+ ISNULL（c.Debit，0）AS借记， - 在此行错误 '无效的列名称借记'' ISNULL（c.Credit，0）AS信用 FROM CTE为C INNER JOIN Accounting.Topics AS T1 ON T1.TopicID = c.NewParentID

在上面的代码你T1.Debit指Accounting.Topics 。