Adding Extra Columns Dynamically

Hi

I have 120 tables, each with the same name except 2 identifying characters at the end eg pc_dist_ab, pc_dist_al
Each table currentnly has 3 columns.
I would like to be able to add 2 additonal columns to each table with one query and was hoping an alter table query where the table name matches pattern would have worked but evidently not.

Is there a way to build some sort of dynamic query to add extra columns to these different tables at the same time?

To save another post I guess Once this is done I would then like to create 1 main table by creating a new table and appending all the files together- again I would prefer to be able to run this once.

I'd appreciate any help/thoughts as to whether this can be done?:confused:
Thanks