Database Systems 1
Run by School of Computer Science and Electronic Engineering
10 Credits or 5 ECTS Credits
Organiser: Mr Andrew Harbach
Overall aims and purpose
To provide students with an introductory level of understanding of database systems: concept of a database, database management systems, ER and EER modelling and the relational model, normalization, and SQL.
Concept of a Database What is a database; their uses and benefits; what came before; what is a DBMS. What information can be stored. Issues over storing user data in a database. Ethics of storage, dissemination and use. Principles: Accessible, Confidential, Completeness.
Database Modeling Database Design Concepts, Entity Relationship Modeling, UML diagrams.
Relational Databases Basic concepts of relational model.
Normalisation First, second, and third normal forms.
SQL Updating and querying tables using SQL.
Learning outcomes mapped to assessment criteria
Understand and describe the major characteristics of a relational database.
|Can explain in outline the concept of a database. Can describe some of the problems assocaited with the traditional file based approach.||Can describe the structure of a DBMS and identify the principal components. Can describe in outline the ANSI-SPARC three layer model.||Can offer a sophisticated explanation of the ANSI-SPARC three layer model.|
Use SQL to query and update a database.
|Can understand and write a range of basic SQL statements(both DDL and DML)||Can understand and write queries involving multiple tables (Joins and Nested Queries).||Can develop and interrogate a non-trivial database (e.g. containing five or more tables). Can define appropriate key structures, referential actions and indexes.|
Understand the relational model and have an awareness of relational algebra.
|Be able to recognise basic relational algebra expressions involving select and projection||A basic understanding of Cartesian and join operators.||Be able to write and understand simple relational algebra operations.|
Use normalisation techniques.
|Can create a simple ER model that does not contain too many relationships.||Can create an ER/EER model involving many relationships and subclasses.||Can create a large complex ER/EER model involving many different types of relationships and subclasses.|
Understand and use E/R diagrams.
|.Can describe 1NF, 2NF and 3NF. Can explain why these forms are important in the process of database design||Can examine a given set of relations and if necessary convert to 1NF.||Can examine a given set of relations and if necessary convert to 3NF.|
|CLASS TEST||Class Test||40|
|COURSEWORK||Assessed lab on basic queries and grouping||30|
|COURSEWORK||Assessed lab on multi table queries||30|
Teaching and Learning Strategy
Formal lectures covering theory and demonstrating practical topics.
Practical sessions writing SQL. Includes marking where students are expected to explain their work to a member of staff. Also includes class tests.
To include working on lab assignments and self-study.
Interactive sessions covering writing SQL, case studies, and revision.
- Literacy - Proficiency in reading and writing through a variety of media
- Numeracy - Proficiency in using numbers at appropriate levels of accuracy
- Computer Literacy - Proficiency in using a varied range of computer software
- Information retrieval - Able to access different and multiple sources of information
Subject specific skills
- Knowledge and understanding of facts, concepts, principles & theories
- Use of such knowledge in modelling and design
- Problem solving strategies
- Analyse if/how a system meets current and future requirements
- Deploy theory in design, implementation and evaluation of systems
- Knowledge of information security issues
- Specify, design or construct computer-based systems
- Deploy tools effectively
- Deploy systems to meet business goals
- Methods, techniques and tools for information modelling, management and security
- Knowledge of systems architecture
- System Design
- Knowledge and/or understanding of appropriate scientific and engineering principles
- Knowledge and understanding of mathematical principles
Talis Reading listhttp://readinglists.bangor.ac.uk/modules/icp-2221.html
Pre- and Co-requisite Modules
Courses including this module
Compulsory in courses:
- I110: BSc Computer Information Systems year 2 (BSC/CIS)
- I11B: BSc Computer Information Systems (4 year with Incorp Found) year 2 (BSC/CIS1)
- IN00: BSc Computer Information Systems for Business year 2 (BSC/CISB)
- IN0B: BSc Computer Information Sys for Bus (4 year w Incorp Found) year 2 (BSC/CISB1)