>Hi,
>Thank you for your sample code and info. Seem, I do it wrongly at the beginning, save data in defined relationship. Could you tell me, how should I define the level?
>
>Ex.
>Item
>A01, B01, C01
>
>Package
>AA01 - A01, B01
>BB01 - AA01, C01
>
>Refer to the case above, What is the level for AA01 and C01?
>
>Thank you

John,
Think as a treeview (or dir listing). You could look above as :

UPPERNODE
  +--BB01
      +--AA01
      |   +---A01
      |   +---B01
      +--C01

Given this for this particular branch data would look like :

NodeId ParentId 
------ --------
BB01   UPPERNODE
AA01   BB01
A01    AA01
B01    AA01
C01    BB01

Notice that with this scheme you can insert any indiviual node under any parentnode just like directories (ie: item 'system' could exist under 'windows' and also say under 'mydir' with all its subdirs or alone or with some of its subdirs).
Cetin