Category: Introduction To Database Systems

What is a DBMS ?

A DBMS is a piece of software intended to manage large amount of data in a robust and efficient manner. A DBMS simplifies the storage and retrieval of data from user perspective. It engages a...

Various functions of DBMSs

Database management systems provide various functions that allow management of data: Data definition – Creation, modification and removal of definitions that describe the organization of data. Update – Insertion, updation, and deletion of the actual...

Data independence

A database system provides two types of data independence. Logical data independence. Physical data independence. Logical data Independence When a user tries to access some data, she is not concerned about what is the...