Database Concepts

 

Data

Data is the raw material that can be processed for any real life object for example Employee name, product name, student name student address etc.

 

Database

Database can be defined as organized collection of related data. Database typically shows the relations and activities of organization entities. For example an organization college management may contain entities as student, Lecturer, classroom, laboratories and so on -which are related to each other, Database for a college management system will describe

§  Activities related to Students, Lecturers, Laboratories and Classrooms.

§  Relationship among the Students, Lecturers, Laboratories and Classrooms.

 

DBMS

As we already defined Database is an organized repository or collection of related data but the question arise as an alone how Database can be managed by the user?

So user needs a tool to manage the Database.

 

Database Management System or DBMS can be defined as software system that allows the user to maintain- to define, to update and to delete the database and provide controlled access to the database.

 

Or

 

Database Management System or DBMS is a collection of Database and the programs to maintain database.