If the http://db.kreie.net URL doesn't work, go to this website to access the scripts and other files used in this video series. https://sites.google.com/view/db-krei...
Look at the data dictionary (data model) and see where master-detail forms would be useful. Create a simple form which uses a single table. Edit the form layout. Next, create a master-detail form, which is based on two tables. Alter the SQL for searching records in a form. Unhide the primary key and foreign key fields to see how the master-detail form works.