Unit – I: Introduction to Database Management System
1. Introduction to DBMS and Its Advantages Definition: A Database Management System (DBMS) is software that helps in storing, managing, and retrieving data from databases efficiently. Example: A library system where books, members, issue/return records are stored in a database and managed using software like MySQL or Oracle DB. Advantages of DBMS: Advantage Description Data Redundancy Control Avoids duplication of data. Data Consistency Ensures all users see the same data. Data Integrity Maintains accuracy and consistency. Data Security Provides user-level access control. Concurrent Access Multiple users can access data simultaneously without conflict. Backup and Recovery Automatically handles data backup and recovery after failure. Better Data Sharing Centralized a...