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ScotlandComputer ScienceQuick questions
Area 3: Database Design and Development
Quick questions on Referential integrity, entity integrity and validation - SQA Higher Computing Science
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State what entity integrity guarantees about a primary key. [2 marks]
What is q2?Show answer
State the validation check that limits a field to an allowed set of values. [1 mark]
What is q3?Show answer
Explain one problem that referential integrity prevents. [1 mark]
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