Duplicate records management

Hi experts,

I have an issue with the suppression of duplicates records, here it is:

Let’s take the following example in DSO 1:

I would like to delete the duplicates from this DSO comparing Code 1 and Code 2.

So I’m doing the following:

Sort source package 1 by id code 1 code 2.

Delete adjacent duplicates comparing code 1 code 2.

So which gives this:

I would like to enhance this code by reading another DSO (DSO 2), if the id is in that DSO, so I have to keep the record.

For example, if id2 is in DSO2. My final DSO has to be like this even if I have a duplicate record comparing code1 and code2 :

How can I do it?

Thanks.

Amine