5 Questions
What is the purpose of the Entity-Relationship (ER) model?
The purpose of the ER model is to define the conceptual view of a database and represent real-world entities and their associations.
What are the components of the ER model?
The components of the ER model include entities, entity types, entity sets, and associations among entities.
What is an entity set?
An entity set is a set of all entities of a particular entity type.
What is an entity in the context of the ER model?
An entity is an object with a physical or conceptual existence, such as a person, car, house, company, job, or university course.
How does the ER model relate to the logical view of a database?
The ER model is used to model the logical view of a database system from a data perspective.
Test your knowledge on Entity-Relationship (ER) model, extended ER model, integrity constraints, relational algebra, and more in this DBMS Unit-2 quiz.
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