SQL SERVER 递归

SELECT Folder_ID , Folder_Name , Folder_ParentId FROM dbo . Folder

 

 

递归语句：

 

在此我们以ADO.NET为例，查询ADO.NET下的子节点：

WITH  TempFolder ( Folder_ID , Folder_Name , Folder_ParentId ) as

  (

    SELECT Folder_ID , Folder_Name , Folder_ParentId FROM Folder WHERE   Folder_ID = '32784691-D1F8-433B-88E3-A35A032470B4'

    UNION ALL

    SELECT A . Folder_ID , A . Folder_Name , A . Folder_ParentId FROM Folder A , TempFolder T

    where A . Folder_ParentId = T . Folder_ID

)

查询结果：

SELECT   *  FROM TempFolder