DATA MODELLING, MANAGEMENT AND GOVERNANCE
· The exam consists of 4 questions. First question is 20 marks, final
question is 30 marks and other questions are 25 marks. You need to answer all
of them to get full marks. Please write all answers in the answer book
provided.
· This is a closed book exam. No material, notes or documentation are allowed whatsoever.
Question 1 (Concepts)
a) Explain the entity integrity rule and the referential integrity rule within the relational model. Provide and explain brief example(s) of your choice that show a violation of both rules. b) Briefly explain what redundant data means in the context of databases. Explain one problem redundant data causes (please provide an example). Discuss what we can do erase redundancy and solve this problem?
complete case study is attached below
Question Attachments
3 attachments —