deletion of duplicate records

Can any one tell how to delete duplicate records from a databse file using the Adabas utilies.

The only ones coming to my mind as being suitable for the task are


but you’d already have to know what records you are looking for, none of them will automagically delete duplicates out of a set.

Just wondering why you can’t write a NATURAL program or use other means (SQL Gateway, …) for that task ?