extract the RQL -result set into a File / String / Any datastructure - HOW To ?

[NewBie]

Hi Experts,

Is it possible in ATG to extract the result sets in RQL and store in a
file or string or any data structure for
further processing ..

eg:
Below is my query item

Execute Query eg --- > <print-item item-descriptor="Order Discount -
Amount Off" id="prom_570041" />
the output will be an RQL. via dyn/admin ..

Requirement :

I need to get this RQL output while run time and do some modification
and create a new promotion..
say with id prom_570041_111, prom_570041_112 etc and execute an add-
item on the fly.

Please share your thoughts and some similar implementations you
experts did or have in your project.

Warm Regards
KDM