A family of Microsoft relational database management systems designed for ease of use.
You really need to define this in more detail. A combobox (sometimes referred to as a drop down) a control that can interface with data. If the ControlSource of the combo is set to a field in the form's Recordsource, then any change in the value of the combo will be reflected in the table. So if you open a new form to the same record, that data will be shown.