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Introduction to Database Systems - unibz

1 Introduction to Database SystemsMotivationWerner Nutt2 Databases Are Everywhere Database = a large (?) collection of related data Classically, a DB modelsa real-world organisation ( , enterprise, university) Entities( , students, courses) Relationships( , Martin is taking IDS in 2010/11 ) Changes in the organisation = changes in the Database Examples: personnel records banking airline reservations3 Scientific Databases (Examples) Biology: , DNA sequencesof genes, amino-acid sequences of proteins, genesexpressed in tissues (up to several Gigabytes) Astronomy: , locationand spectraof astronomic objects (up to several Terabytes) Physics.

7 Database Management System (DBMS) • A DBMS is a software package designed to store and manage databases • A DBMS provides generic functionality (see previous slide) that otherwise would have to be

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Introduction to Database Systems - unibz

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