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Database System

Database System

Introduction

A database system is a software system that allows you to define, create, maintain, and manipulate databases.

Components

  • Database: A collection of related data.
  • Database Management System (DBMS): Software that manages the database.
  • Database Application: Software that interacts with the database.

DBMS Functions

  • Data Definition: Defining the structure of the database.
  • Data Manipulation: Inserting, updating, and deleting data.
  • Data Querying: Retrieving specific data.
  • Data Security: Controlling access to the database.
  • Data Backup and Recovery: Ensuring data integrity and availability.

Types of Database Systems

  • Relational Database Management System (RDBMS): Organizes data into tables.
  • NoSQL Database: Designed for handling large amounts of unstructured or semi-structured data.
  • Object-Oriented Database: Stores data in the form of objects.

Advantages

  • Data Integration: Integrates data from multiple sources.
  • Data Sharing: DBMS allows multiple users to access and share data.
  • Data Security: Provides mechanisms for controlling access to data.
  • Data Integrity: Ensures data consistency and accuracy.

Applications

  • Business: Used in various industries for managing customer data, inventory, and financial transactions.
  • Healthcare: Used for managing patient records and medical data.
  • Education: Used for managing student records and academic data.

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