1. Databases 2 Level 3, 10 credit module Prerequisite: 06-19321 Software System Components 2 (or some other introductory course in databases) 2 lectures & 1 exercise class / week Weekly exercise sheets [unassessed; but IF YOU DO THEM you receive feedback on these]

2. What is covered 1. Querying a relational database with SQL 2. Modelling a real-world situation with (extended) entity-relationship diagrams * ER modelling * Extended ER diagrams * Translating EER diagrams to tables (SQL CREATE statements)

3. What is covered (cont'd) 3. Logical analysis of database designs * Relational algebra * Functional dependencies * Normalisation

4. What is covered (cont'd) 4. Relational Database Management System (RDBMS) implementation technology * File organisation and retrieval * Indexes * Algorithms for relational operators * Query Execution * Query Optimisation * Transactions

5. Assessment 20% continuous assessment 3 in-class assessed tests, 50 mins each Announced ~1week in advance Marks made available via the web 80% written exam in May Undergrads (BA, Bsc, BEng or MEng) can NOT resit the exam Msc have one resit opportunity

6. What you will learn Use SQL for querying a relational database We use PostgreSQL – open source db management system Design a relational database using extended entity-relationship diagrams Translate EER diagrams → SQL CREATE statements; SQL → relational algebra Analyse a relational database design using functional dependencies & perform transforms towards Boyce-Codd Normal Form

7. What you will learn (cont'd) Understand database implementation principles & their impact on query evaluation efficiency Structure a series of queries as transactions, & understand the impact this has on database behaviour & performance

8. What is expected of you Regular attendance at lectures Coming prepared (with notes) for the exercise class so you can complete a large fraction of exercise in the class Collecting feedback promptly & reviewing any mistakes you might have made Approaching me in office hours to clear up any questions promptly Have fun in learning!