This new international version of Database Systems maintains its engaging writing style and brevity, its unique balance between theory and practice and its wealth of examples throughout the text, inspiring student-friendly learning at its best. This new international version includes new chapters on Relational Algebra and Physical Database Design, and UML modelling notation. It has been updated with all the latest developments and technologies and incorporates a generous number of localised and motivating business vignettes that tie the concepts to real-life situations.