Question

is a collection of all entities
of a particular entity type
​

Answer 1

Answer:

The collection of all entities of a particular entity type in the database at any point of time is called an entity set or extension of the entity type. Key Attributes: ... Such an attribute is called a key attribute, and its values can be used to identify each entity uniquely.

Answer 2

Answer:

Entity set

is a collection of all entities.