Principles of database systems: History and motivation, DBMS functions, database architectures, use of a database query language. Data modeling: conceptual models, object-oriented model, and relational data model. Relational databases: conceptual schema and relational schema, and integrity constraint. Relational algebra and relational calculus. Functional dependencies and normal forms. Database query languages. Relational database design. The course stresses basic concepts and presents many examples from existing database systems. A database design and implementation project of a real world application is required, using modern database management tools.