t-sql recursive query

Question

Based on an existing table I used CTE recursive query to come up with following data. But failing to apply it a level further.

Data is as below

id    nam         


        

Answer 1

try this:

DECLARE @YourTable table (id int, nameof varchar(25), parentid int)
INSERT @YourTable VALUES (1,'project',0)
INSERT @YourTable VALUES (2,'structure',1)
INSERT @YourTable VALUES (3,'path_1',2)
INSERT @YourTable VALUES (4,'path_2',2)
INSERT @YourTable VALUES (5,'path_3',2)
INSERT @YourTable VALUES (6,'path_4',3)
INSERT @YourTable VALUES (7,'path_5',4)
INSERT @YourTable VALUES (8,'path_6',5)

;WITH Rec AS
(
    SELECT
        CONVERT(varchar(max),nameof) as nameof,id
        FROM @YourTable
        WHERE parentid=0
    UNION ALL
    SELECT
        CONVERT(varchar(max),r.nameof+'\'+y.nameof), y.id
        FROM @yourTable y
            INNER jOIN Rec r ON y.parentid=r.id
)
select * from rec

output:

nameof                                         
-----------------------------------------------
project                                        
project\structure                              
project\structure\path_1                       
project\structure\path_2                       
project\structure\path_3                       
project\structure\path_3\path_6                
project\structure\path_2\path_5                
project\structure\path_1\path_4                

(8 row(s) affected)