Ok, j'ai compris :) -- Cela semble fonctionner ici.
DECLARE @Categories TABLE (
ID int PRIMARY KEY
,Title varchar(256)
,ParentID int
)
INSERT INTO @Categories
VALUES
(1, 'All', 0)
,(2,'Banking', 8)
,(3,'USAA Checking', 2)
,(4,'USAA Mastercard', 2)
,(5,'Medical', 8)
,(6,'Jobs', 8)
,(7,'Archive', 1)
,(8,'Active', 1)
,(9,'BoA Amex', 2)
;
WITH CategoryTree
AS (SELECT r.ID, r.Title, 0 Level, r.ParentID,
CAST(r.Title AS VARCHAR(1000)) AS "Path"
FROM @Categories r
WHERE r.ParentID = 0
UNION ALL
SELECT c.ID, c.Title, p.Level + 1 AS Level, c.ParentID,
CAST((p.path + '/' + c.Title) AS VARCHAR(1000)) AS "Path"
FROM @Categories c
INNER JOIN CategoryTree p
ON p.ID = c.ParentID
)
SELECT ID, REPLICATE('-----', Level) + Title AS Title, [Path]
FROM CategoryTree
ORDER BY [Path]
