Practice - Entity-Relationship (ER) Model
Practice Questions
Test your understanding with targeted questions
What is an entity?
💡 Hint: Think of examples like a student or a car.
Define what an attribute is.
💡 Hint: Consider what data you would store about a student.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is an entity in the ER Model?
💡 Hint: Consider an example of a person or thing.
Is a weak entity capable of existing independently?
💡 Hint: Think of a dependent of an employee.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Create an ER diagram for a library system including authors, books, and members. Ensure to include relationships and cardinalities.
💡 Hint: Think about how members check out books and how authors write them.
How would you convert a weak entity set for dependents into a relational schema? Explain the attributes involved.
💡 Hint: A dependent could be identified uniquely with the employee ID plus their name.
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Reference links
Supplementary resources to enhance your learning experience.