Good morning the reason for my questions about identifying and non-identifying relationship been inquiring about the issues the concept I think I already understood, but I have a doubt about what would happen if at the time of the shaping of my database ( model er ) does not take into account the identifier in the relationships between entities. Examples: if you have a database and only the database is molded and only done with non-identifying relationship but in the database there are fields that do have identifiers, because they do not apply adequately, either the identifying or non-identifying relationship only by applying one of the 2 in the database that affects the database.
