Entity entity type and entity set

1. What is entity entity type and entity set?
2. What is entity and entity type with example?
3. What is entity entity type?
4. What is an entity set?

What is entity entity type and entity set?

The relationship between an entity type and an entity set is analogous to the relationship between a row and a table in a relational database: Like a row, an entity type describes data structure, and, like a table, an entity set contains instances of a given structure.

What is entity and entity type with example?

Entity. A single unique object in the real world that is being mastered. Examples of an entity are a single person, single product, or single organization. Entity type. A person, organization, object type, or concept about which information is stored.

What is entity entity type?

An entity can be of two types : Tangible Entity : Entities that exist in the real world physically. Example: Person, car, etc. Intangible Entity : Entities that exist only logically and have no physical existence. Example: Bank Account, etc.

What is an entity set?

Entity Set is a collection of entities of the same entity type. In the above example of STUDENT entity type, a collection of entities from the Student entity type would form an entity set. We can say that entity type is a superset of the entity set as all the entities are included in the entity type.