Occasionally one sees an entity-relationship diagram (ERD) having an unusual characteristic. The unusual element is an entity (or more than one) that seems to have a relationship with every other ...

In both deletes and updates there's an assumption that you have to retrieve the corresponding entity object from the database. With an update, you pull back the object so that you can set its ...

Introduce the concepts about relational models. Train students on how to convert a conceptual entity relationship model to a relational model. Introduce students with the reasons and process of ...

Here's a tip about how to exploit Entity Framework's change tracking mechanism to -- possibly -- eliminate a trip to the database when you update an item. But, without some additional code, you ...