Sql 获取父子层次结构中的所有父对象

我的表格中有以下数据

ID          NAME                           PARENTID    STATUS
----------- ------------------------------ ----------- ------
1           Folder A                       0           0
2           Folder B                       1           0
3           Folder C                       2           1
4           Folder D                       1           0
5           Folder E                       4           0
6           Folder G                       5           0
7           Folder H                       6           1

  SELECT    *
  FROM      @Temp WHERE [STATUS]=1      

ID          NAME                           PARENTID    STATUS
----------- ------------------------------ ----------- ------
1           Folder A                       0           0
2           Folder B                       1           0
3           Folder C                       2           1
4           Folder D                       1           0
5           Folder E                       4           0
6           Folder G                       5           0
7           Folder H                       6           1

以上记录来自表[@Temp]

[Name] - Folder Name
[ID] - Unique ID of folder in database (identity)
[ParentID] - Represents the parent of current folder.

  SELECT    *
  FROM      @Temp WHERE [STATUS]=1      

用于在表中填充上述数据的查询：

  DECLARE @Temp TABLE
    (
      [ID] INT IDENTITY(1, 1) ,
      [NAME] VARCHAR(30) ,
      [PARENTID] INT,
      [STATUS] BIT
    )

  INSERT    INTO @Temp
            SELECT  'Folder A' ,
                    0, 0
            UNION
            SELECT  'Folder B' ,
                    1, 0
            UNION
            SELECT  'Folder C' ,
                    2, 1
            UNION
            SELECT  'Folder D' ,
                    1, 0
            UNION
            SELECT  'Folder E' ,
                    4, 0
            UNION
            SELECT  'Folder G' ,
                    5, 0
            UNION
            SELECT  'Folder H' ,
                    6, 1              

  SELECT    *
  FROM      @Temp WHERE [STATUS]=1      

我使用以下查询来获取status=1的记录

  SELECT    *
  FROM      @Temp WHERE [STATUS]=1      

这将提供以下输出

  SELECT    *
  FROM      @Temp WHERE [STATUS]=1      

ID          NAME                           PARENTID    STATUS
----------- ------------------------------ ----------- ------
3           Folder C                       2           1
7           Folder H                       6           1

我的目标是也获取那些记录，这些记录是父记录（直到parentid=0）上述查询附带的记录。i、 e我要获取此输出，其中包含文件夹C和文件夹H的父级：

  SELECT    *
  FROM      @Temp WHERE [STATUS]=1      

---

我做了一个递归CTE-我从底部开始，任何没有子文件夹的文件夹。从那里，我向上传递“GOOD”列中是否遇到了“1”状态，而distinct清除了从底部开始创建的重复项

  SELECT    *
  FROM      @Temp WHERE [STATUS]=1      

;WITH CTE AS 
(
    SELECT ID, NAME, PARENTID, STATUS GOOD, STATUS
    FROM @Temp T1
    WHERE NOT EXISTS (SELECT * FROM @Temp T2 WHERE T2.PARENTID = T1.ID)

    UNION ALL

    SELECT T.ID, T.NAME, T.PARENTID, T.STATUS | C.GOOD GOOD, T.STATUS
    FROM @Temp T
    JOIN CTE C
    ON C.PARENTID = T.ID
)

SELECT DISTINCT ID, NAME, PARENTID, STATUS FROM CTE
WHERE GOOD = 1
ORDER BY ID ASC

---

你能举一个预期结果与源数据不同的例子吗？