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25-Comp-B3 Data Bases and File Systems: December 2013

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1
  2. Question 2
  3. Question 3 ER diagram — Downtown Vancouver Records
  4. Question 4 ER diagram — Toronto Downtown Airport
  5. Question 5 SQL queries — Suppliers/Parts/Catalog
  6. Question 6 Relational algebra — Passengers/Reservations/Flights
  7. Question 7 Functional dependencies and normalization
  8. Question 8 Transactions and serializability

Start with Question 1 →

98-Comp-B3, Data Bases & File Systems — National Exams, December 2013. 3 hours, closed book (calculators permitted). Candidates were instructed to answer five questions: one of Questions 1/2, one of Questions 3/4, and three of Questions 5–8 — only those five are marked. All 8 questions are answered below for completeness (this is a study resource covering the full syllabus).

Reference texts: Silberschatz, Korth & Sudarshan, Database System Concepts (7th ed.) — ER modelling, normal forms, transactions and serializability; Ramakrishnan & Gehrke, Database Management Systems (3rd ed.) — B+-tree indexing, SQL, and relational algebra.