In this discussion we will be practicing the art of creating

In this discussion, we will be practicing the art of creating entity relationship diagrams. It takes practice, but the rewards of learning it greatly exceed the efforts applied. Database technology is prevalent in most aspects of the IT industry and therefore is crucial to learn.

So let\'s start off simple. What are entities? What are attributes? How can you tell an entity from an attribute?

Solution

The entity is defined as the real-world object,which can be identifiable. Suppose let us consider,the college database, students, professors, classes, and branches can be entitiled as entities. For each and every entity have attributes or features or properties which possess their identity.

Entities are depicted with the help of properties, named it as attributes.Each and every attribute posses the values. Let us consider, a professor entity may have name,and age as attributes.