[MS Access] Form

Hello,

I don’t know if you guys are familiar with Access, but I’m in urgent need of some feedback so really anything is more than welcome.

I need to create a form that works with 4 different tables. It’s used for managing distributors. The schema could look like this:

The largest problem I have is to construct a SQL query depending on a field of some list (too feeded from database).

In this case, display cities only from the selected region so the SQL query for list of cities [COLOR=Red]could look like[/COLOR] SELECT * FROM cities WHERE [COLOR=Red]reg_id = [region_list.selectedItem.reg_id][/COLOR]

where the actual form should look like this:

I’ve never worked with this technology so I’m a bit lost in the ways these things should be done.

Thanks for your help,
Matthew