What is an entity? What is an attribute? What is a relationship?

Answer and Explanation:

These terms are defined as:

1. Entity:

An entity can be defined as any object that exist physically. it can be referred to any object that is distinguishable, singular and can be recognized like a firm, a person, etc.

2. Attribute:

An attribute can be defined as the specification of any entity.

For instance, if a bike is an entity then wheels, etc are its attributes.

3. Relationship:

It can be defined as any link or connection that exist between 2 entities.