Question

我正在编写一个基本的pic（yippee）报告并将其转换为.NET。报告最后会在下面看到。该表（仅显示一部分数据以保持简单）具有ParentID（ID）和其中的ChildID，并且基本上连接直到没有可用的ChildID（NULL）。我写了一个程序，我认为它可以运行正常，但坐着并没有返回任何类型的结果。 SQL不是我的强项。

报告

0.........  SA33028
 1........  42S0131
 1........  5S0127
 1........  6S0175
 1........  SA33023
  2.......  16S0142
  2.......  18S0103
  2.......  24S0108
  2.......  28SM0105
  2.......  S30461.AI
  2.......  S30463
   3......  S28807
   3......  S28807
  2.......  S30641
  2.......  S31134
  2.......  S9383
  2.......  SA29801
   3......  16S0116
   3......  S27798
   3......  S31170
   3......  SA30059
    4.....  38S0116
    4.....  7S0105
    4.....  S19430.145
     5....  7SM0145
      6...  7SM0145.001
      6...  7SM0145.002
     5....  S19430
    4.....  S19431
  2.......  SA30910

表格

ParentID      ChildID
SA33028   42S0131
SA33028   5S0127
SA33028   6S0175
SA33028   79S0101
SA33028   S11870
SA33028   S30151
SA33028   SA33023
SA33028   SA33029
SA33023   S30463
S30463    S28807

SQL过程：

ALTER PROCEDURE [dbo].[getHierarchy]
@Parent VARCHAR(20)

AS
BEGIN

SET NOCOUNT ON;

WITH AllParts([PSNbr], [ChildID], [ParentID])
AS 
(
 SELECT Child.Parent_Part AS PSNbr, 
 Child.Parent_Part AS ChildID, 
 Parent.Parent_Part AS ParentID
 FROM ps AS Child
 LEFT OUTER JOIN ps AS Parent
 ON Child.Component_Part = Parent.Parent_Part

 UNION ALL

 SELECT AllParts.PSNbr AS PSNbr,
    AllParts.ParentID AS ChildID, 
    NewParent.Component_Part AS ParentID
 FROM AllParts
 INNER JOIN PS AS NewParent
 ON AllParts.ParentID = NewParent.Parent_Part
    AND AllParts.ParentID <> AllParts.ChildID
 INNER JOIN PS as NewParentInfo
 ON NewParent.Component_Part = NewParentInfo.Parent_Part

)
SELECT AllParts.[PSNbr],
       AllParts.[ParentID]
FROM AllParts
WHERE PSNbr = @Parent;

Answer 1

为了纪念KISS原则，我会问。你是如何测试程序的？你刚刚在SQL中点击F5或运行它吗？尝试从“BEGIN”突出显示到“END”，然后点击F5。（顺便说一下，上面的例子中没有“结束”）

分层产品结构

1 个答案: