Entity Type
Entity type in a database is a category or collection of similar objects or entities. They have a similar nature and these entities share common attributes or characteristics.
For instance, in a university database, “Student” and “Professor” are the entity types. Every student or professor within these categories will have properties like ID, name, email, and department. The types of entities define the data in a meaningful way and make it easy to store and retrieve it.
What is an Extension of Entity Type?
Entity Type Extensions are a key issue with a database management system (DBMS) that helps to develop the current entity types without messing with the main structure.
In this article, the definitions, examples, and the importance of the entity type extensions in the database design will be discussed presenting how they are essential to the maintenance of a non-contradictory and efficient data structure and the ability to adapt to the enterprise performance needs that are continuously changing.