Database Management
Systems (DBMS) – Summary
Notes
---
1. Introduction to DBMS
A Database Management System (DBMS) is software used to
store, manage, and retrieve data efficiently.
Advantages:
Data Independence – Separation of data and application
logic
Reduced Redundancy – Centralized data storage
, Data Security – Access control and encryption
Concurrent Access – Multiple users can access data
simultaneously
Backup and Recovery – Automatic data restoration after
failure
Examples:
MySQL, Oracle, PostgreSQL, SQL Server, MongoDB
---
2. Database Models
Model Description Example
Hierarchical Tree-like structure IBM IMS
Systems (DBMS) – Summary
Notes
---
1. Introduction to DBMS
A Database Management System (DBMS) is software used to
store, manage, and retrieve data efficiently.
Advantages:
Data Independence – Separation of data and application
logic
Reduced Redundancy – Centralized data storage
, Data Security – Access control and encryption
Concurrent Access – Multiple users can access data
simultaneously
Backup and Recovery – Automatic data restoration after
failure
Examples:
MySQL, Oracle, PostgreSQL, SQL Server, MongoDB
---
2. Database Models
Model Description Example
Hierarchical Tree-like structure IBM IMS
