Mapping a keyless entity type to a database object is achieved using the ToTable or ToView fluent API. From the perspective of EF Core, the database object specified in this method is a view, meaning that it is treated as a read-only query source and cannot be the target of the update, insert or delete operations. However, this does not mean that the database object is actually required to be a database view. It can alternatively be a database table that will be treated as read-only. Conversely, for regular entity types, EF Core assumes that a database object specified in the ToTable method can be treated as a table, meaning that it can be used as a query source but also targeted by the update, delete and insert operations. In fact, you can specify the name of a database view in ToTable and everything should work fine as long as the view is configured to be updatable on the database.