Assign transaction codes to Zprogram-MASS update

Hi,

How to do:

1)IDENTIFY: All ZPrograms in R/3 that DO NOT have a transaction code assigned

2)CREATE: For all ZPrograms in R/3 that DO NOT have a transaction code assigned we want the following:

Assign a system generated transaction code to the ZProgram ( ** Maybe use Program name as Tcode** )

Any input/help (table names,code,..) is highly appreciated.

Thanks

Naved