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Lecture Database management systems - Chapter 1: Overview of database management system

Chapter 1 - Overview of database management system. This chapter includes contents: Overview of database management systems (DBMS), an example, characteristics of the database, DBMS vs. file-based system, advantages of using the DBMS approach. | Chapter 1 Overview of Database Management System Objectives Overview of DBMS An Example Characteristics of the Database DBMS vs. File-based system Advantages of using the DBMS approach Data and Information Data: ◦ Raw facts that constitute building block of information. ◦ The heart of the DBMS. All the data will not convey useful information. processed Data Information Data Collection of information metadata Database A database: ◦ A collection of data that are related in a meaningful way, which can be accessed in different logical orders. The main features of the data in the database: ◦ Well organized (structured) ◦ Related ◦ Accessible in different orders Database example Book airline ticket Register a new course in university Buy book in the bookstore Library .