How to pass Internal Table dynamically to a subroutine

Hi all,

I want to pass an internal table to a PERFORM. so that i have written code as

PERFORM fetch_data using it_table.

FORM fetch_data using p_it_table type z_table.

ENDFORM.

            Here it_table has got the structure z_table. I want to pass another internal table , say it_table2 of structure z_table2, to the same perform.

Is it possible to pass different type of internal table to the same perform? Please explain.

Thanks,

Rohith.