Update some columns of a record if that record is being inserted during a BulkInsert

Table on DB:

TABLE ALBUM - ID_ON_DISCOGS (unique) - ARTIST_ID - LABEL_ID

I have to bulk insert records into this table.

The problem is that sometimes it could happen that the bulk insert tries to insert a record with a ID_ON_DISCOGS that is already present.

In that case I'd like to update the ARTIST_ID or the LABEL_ID fields with the new values.

Example:

ALBUM RECORD already in DB:

 |ID_ON_DISCOGS | ARTIST_ID | LABEL_ID|
 :------------------------------------:
 |123           | 345       | null    |
 :------------------------------------:

ALBUM RECORD I try to insert:

 |ID_ON_DISCOGS | ARTIST_ID | LABEL_ID|
 :------------------------------------:
 |123           | null       | 567    |
 :------------------------------------:

result record I'd like to achieve:

 |ID_ON_DISCOGS | ARTIST_ID | LABEL_ID|
 :------------------------------------:
 |123           | 345        | 567    |
 :------------------------------------:

Possibly a solution that could fit in a content provider.