Recursive parent child categories

Hello 
I am trying to create a select box populating it from a MS-SQL database however I don't need to use a treeview.  What I need is very simple populating endless parent/child node and displaying them in a select box options.  For example:
Parent 1 / 
Parent 1 / Child 1
Parent 1 / Child 2 
Parent 1 / Child 2 / Sub Child 1
Parent 2 / 
Parent 2 / Child 1
Parent 1 / Child 1 / Sub Child 1
Parent 1 / Child 1 / Sub Child 1 / Sub Sub Child 1

and so on ... it is important that is made in a listbox and I can control the outcome text should be controlled by me alongside the value of the option.

If you need any more clarifications please let me know.

Thanks
Awny