需要對T-SQL

Question

樹型表的查詢我有3個表即是這樣的關係：

樹被加入本身使用的ParentId爲外鍵。樹和所有者表通過xrefOwnerTree表具有多對多關係。

我想寫一個查詢/函數，我給它一個樹ID，它給了我一個最近在層次結構（向上）的OwnerId。

這是我到目前爲止有：

WITH c (TreeId, Parentid, level, BranchName, OwnerId) as 
(
    SELECT t.TreeId, t.Parentid, 0 as level, BranchName, o.OwnerId 
    FROM Tree t 
    JOIN xrefOwnerTree ot ON t.TreeID = ot.TreeId 
    JOIN Owner o ON ot.OwnerId = o.OwnerId 
    WHERE Parentid is null 

    UNION ALL 

    SELECT t2.TreeId, t2.parentid, c.level + 1, t2.BranchName, o2.OwnerId 
    FROM Tree t2 
    JOIN xrefOwnerTree ot2 ON t2.TreeID = ot2.TreeId 
    JOIN Owner o2 ON ot2.OwnerId = o2.OwnerId 
    INNER JOIN c ON c.TreeId = t2.parentid 
) 
SELECT * FROM t WHERE t.TreeId = 32800 and t.OwnerId is not NULL 

它返回0的記錄。它應該返回回1.

樣本數據：

select * from tree where treeid = 32800 
union 
select * from tree where treeid = 32646 
union 
select * from tree where treeid = 32645 
union 
select * from tree where treeid = 32619 
union 
select * from tree where treeid = 31459 
union 
select * from tree where treeid = 31458 

select * from owner 

select * from dbo.xrefOwnerTree where treeid = 31459 

WITH c (TreeId, Parentid, level, BranchName, OwnerId) as 
(
    SELECT t.TreeId, t.Parentid, 0 as level, BranchName, o.OwnerId 
    FROM Tree t 
    JOIN xrefOwnerTree ot ON t.TreeID = ot.TreeId 
    JOIN Owner o ON ot.OwnerId = o.OwnerId 
    WHERE Parentid is null 

    UNION ALL 

    SELECT t2.TreeId, t2.parentid, c.level + 1, t2.BranchName, o2.OwnerId 
    FROM Tree t2 
    JOIN xrefOwnerTree ot2 ON t2.TreeID = ot2.TreeId 
    JOIN Owner o2 ON ot2.OwnerId = o2.OwnerId 
    INNER JOIN c ON c.TreeId = t2.parentid 
) 
SELECT * FROM c 

SELECT t.TreeId, t.Parentid, 0 as level, BranchName, o.OwnerId 
FROM Tree t 
JOIN xrefOwnerTree ot ON t.TreeID = ot.TreeId 
JOIN Owner o ON ot.OwnerId = o.OwnerId 
WHERE Parentid is null 

Answer 1

我沒有自己的表。我建議你有一個像這樣的檢查您的聯盟之一：

首先檢查它：

SELECT t.TreeId, t.Parentid, 0 as level, BranchName, o.OwnerId 
    FROM Tree t 
    JOIN xrefOwnerTree ot ON t.TreeID = ot.TreeId 
    JOIN Owner o ON ot.OwnerId = o.OwnerId 
    WHERE Parentid = 0 

然後第二個..

希望它可以幫助。