Recursive same-table query in SQL Server 2008

Question

I have the following table in a SQL Server 2008 database:

Id  Name       ParentFolder
--  ----       ------------
1   Europe     NULL
2   Asia       NULL
3           


        

Answer 1

I tried the solution above, but found that this only worked for me to 2 levels. (Perhaps I have not understood or missed something.)

In order to get the fully qualified path for m solution I have succeeded with this custom function:

CREATE FUNCTION GetFQN(@recid int)
RETURNS VARCHAR(1000)

AS

BEGIN
    DECLARE @path AS VARCHAR(1000)
    DECLARE @parent_recid AS INT

    SET @path           =   (SELECT BranchName FROM Branches WHERE Recid = @recid)
    SET @parent_recid   =   (SELECT recid_parent FROM Branches WHERE Recid = @recid)


    WHILE @parent_recid != -1
    BEGIN
        SET @path = (SELECT BranchName FROM Branches WHERE recid = @parent_recid) + '/' + @path 
        SET @parent_recid = (SELECT recid_parent FROM Branches WHERE recid = @parent_recid)
    END

    RETURN (@Path)
END