sql 2005 遞歸 查詢部門所有子部門 with關鍵字

前些日子要查詢查詢部門所有子部門

上網搜索了一下，方法有

（1）、sql 2005的數據庫歐！！2000不支持的

with SUBdeptName(DEPT_ID,DEPT_NAME)
as
(
 SELECT
 DEPT_ID,
 DEPT_NAME
 FROM dbo.DEPARTMENTInfo
 WHERE DEPT_ID=1
)
 UNION ALL

 SELECT
 DEPT_ID
 ,DEPT_NAME
 FROM dbo.DEPARTMENTInfo
INNER JOIN SUBdeptName
 ON DEPARTMENTInfo.SUPERIOR_DEPT=SUBdeptName.DEPT_ID
)

（2）、測試數據--可直接運行

SELECT * INTO t --載入測試數據
FROM
(
    SELECT 1 AS ID,'food' AS Product,0 AS ParentID UNION ALL
    SELECT 2,'sport',0 UNION ALL
    SELECT 3,'drink',1 UNION ALL
    SELECT 4,'ball',2 UNION ALL
    SELECT 5,'fruit',1 UNION ALL
    SELECT 6,'apple',5 UNION ALL
    SELECT 7,'banana',5 UNION ALL
    SELECT 8,'football',4 UNION ALL
    SELECT 9,'basketball',4 UNION ALL
    SELECT 10,'peisi',3 UNION ALL
    SELECT 11,'wohaha',3
) AS a

SELECT * FROM T
GO
WITH ShowTree(ID,Product,ORDERBY) AS
(
    SELECT ID,Product,ID FROM t WHERE ParentID=0 --固定成員
   
    UNION ALL
    SELECT t.ID,t.Product,ORDERBY*100+t.ID FROM ShowTree AS s
    INNER JOIN t ON s.ID = t.ParentID
)
SELECT * FROM ShowTree ORDER BY CAST(ORDERBY AS VARCHAR(50))--OPTION(MAXRECURSION 1)

DROP TABLE t