Object key and table field association

Hi all, i have a address number and an object key associated with it from table adrv. Say suppose the object key is a notification number. Is there a way to get the table name and field name of the object key(in this case, qmel and qmnum resp.). There is an app_table and app_field columns in table adrv, but for notification object key the app_field name points to adrnr but i want qmnum instead.