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Databases

Code 14340
Year 2
Semester S1
ECTS Credits 6
Workload PL(30H)/T(30H)
Scientific area Informatics
Entry requirements Competence in algorithms and programming.
Mode of delivery Face-to-face.
Work placements Not applicable.
Learning outcomes This course introduces the theme of design, analysis and construction of the relational paradigm. Therefore, its main objective is to prepare students to understand, design and develop database systems.
The course focuses on the relational model, namely, modelling, normalization, query languages (relational algebra and SQL), database management issues and developing client/server database applications.
Upon completion of the teaching-learning process, the student should be able to:
- Given a real, or hypothetical case, develop a suitable data model;
- Normalize (3NF, BCNF, or a superior normal form) and "de-normalize" relations;
- Choose a database management system that fulfills the needs of the information system to be developed;
- Produce the physical database model;
- Query the database (using SQL);
- Develop multi-user database applications;
- Use transactions.
Syllabus 1. Introduction to database systems
1.1 Data files vs Desktop databases vs Client/server databases: advantages, disadvantages and when use (or not use)
1.2 Fundamental concepts
1.3 Data models (hierarchic; network; and relational. Data structures and manipulation languages)

2. The relational model.
2.1 The data model
2.2 Relational algebra
2.3 Database query languages
2.4 Integrity constraints
2.5 Logical dependences

3. Conceptual database analysis and design
3.1 Entity-Relationship modelling
3.2 Normalization

4. Client/Server applications development

5. Transactions
5.1 ACID properties
5.2 Transaction isolation and related phenomena
5.3 Concurrency
Main Bibliography 1. Feliz Gouveia. “Bases de Dados – Fundamentos e Aplicações”, 2ª Edição, FCA, 2021, ISBN: 978-972-722-901-7.

2. Thomas Connolly, Carolyn Begg. “Database Systems, A Practical Approach to Design, Implementation and Management”, 6th Edition, 2015. Pearson, ISBN: 978-1-292-06118-4

3. Luís Damas, “SQL”, 14ª Edição, FCA, 2017, ISBN 978-972-722-829-4

4) R. Ramakrishnan and J. Gehrke, Database Management Systems, McGraw-Hill, 2003.
Teaching Methodologies and Assessment Criteria Continuous evaluation: Written test; Practical work; Autonomous work; and Oral.
Assessment by exam: Written test; Practical and autonomous works (from continuous evaluation phase); and Oral.
Oral tests jury: UC faculty.
Practical work: Performed in group, with milestones and defense. Each milestone failure may imply a penalty (20% per day).
Autonomous work: The student must scan the autonomous work notebook and upload it to the Moodle (within one week).

Weighting of assessment elements:
- Written + oral test: 0.65 (13 points)
- Practical assignment: 0.25 (5 points)
- Autonomous Work: 0.10 (2 points)

To be admitted to exam (“Frequência” classification), the student must satisfy (all) the following criteria:
- Comply with the attendance criteria (100%).
- Participate in the preparation and discussion of practical work.
- Get a score of, withour autonomous work, of at least 6.0 points.
Language Portuguese. Tutorial support is available in English.
Last updated on: 2024-09-23

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