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DBMS BCA Unit-1 DBMS - Introduction The File Based System Database System vs. File Based System Limitations of File Based System Database System Components Advantages of Database Approach DBMS ARCHITECTURE Three Level Architecture of DBMS External or View Level Conceptual Level Internal or Physical Level Data Independence Physical DBMS Architecture Database Manager Database Users Database Administrator (DBA) Roles and Responsibilities of DBA Data Models The Relational Data Model The Network Data Model The Hierarchical Data Model MySQL Installation in Ubuntu


The File Based System

File based systems are an early attempt to computerise the manual filing system. This works well when the number of items to be stored is small or the process is only needed to store and retrieve information.