Hello all! I faced the following. When I update DB with many changes before SaveChangesAsync I catch Microsoft.EntityFrameworkCore.DbUpdateConcurrencyException: Database operation expected to affect 1 row(s) but actually affected 15394 row(s). I fixed it inserting SaveChangesAsync after each small piece of changes. I am sure that problem in the provider (Oracle.EntityFrameworkCore 2.18.0-beta3) because after I chaned it to Devart provider it works correctly. Maybe someone faced the similar problem and will help me. Thanks.