Basi di dati II

The course is divided into two parts, one that deals with database internals, and the other that deals with advanced data models. The first part presents the basic concepts, fundamental data structures, and general techniques that are used to implement a database management system (DBMS) with the main emphasis on relational DBMSs. This part will cover (a) the most frequently used data structures to store and access efficiently sets of data and relationships between them, (b) the techniques used in database management systems to process and optimize queries specified in SQL, and (c) the techniques to implement transactions, recovery, and concurrency control. The second part presents the notion of semistructured data (SSD) and some different data models and languages that are used to manage SSD. This part will present the W3C standards XML, XQuery, RDF and OWL. Students who take the ‘Data Bases: Data Structures and Algorithm’ course will only follow the first part.