Practice - Integrity Constraints: Entity Integrity, Referential Integrity, Domain Constraints
Practice Questions
Test your understanding with targeted questions
What are domain constraints?
💡 Hint: Think about what kind of values can be entered in a column.
True or False: Entity integrity constraints allow NULL values in primary keys.
💡 Hint: Recall what primary keys must ensure for database integrity.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens if a NULL value is entered in a primary key?
💡 Hint: Recall the rules about primary key requirements.
True or False: Domain constraints ensure data types and formats are respected in a table.
💡 Hint: Think about what happens when invalid data is attempted.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a simple database schema for a library system that utilizes integrity constraints. Identify at least one domain, entity, and referential integrity constraint.
💡 Hint: Think about the relationships between books borrowed by members and validity of their IDs.
Discuss potential issues that could arise if referential integrity constraints are not enforced in a customer-order database.
💡 Hint: Consider how missing links can cause confusion in record-keeping.
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Reference links
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