update by incremental load

Hi

i would like to to incremental load with upsert.

means,

1. create incremental load (no issues)

2. there are some rows which can be updated in the DB, means,

    A. they have been already inserted to the powerbi

    B. so i want in the powerbi loading to or delete and insert, or update.

I can't do the load according to data, as the orws can be updated in the DB...anu suggestions?