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CS Theory / Database Management Systems
02.01 · Lesson

DBMS Introduction

A database is a collection of related data which represents some aspect of the real world. A database system is designed to be built and populated with data for a certain task.

3 min Free

Database

A database is a collection of related data which represents some aspect of the real world. A database system is designed to be built and populated with data for a certain task.

Database Management System (DBMS)

DBMS is a software for storing and retrieving users’ data while considering appropriate security measures. It consists of a group of programs which manipulate the database. The DBMS accepts the request for data from an application and instructs the operating system to provide the specific data. In large systems, a DBMS helps users and other third-party software to store and retrieve data.

Difficulties of File-processing Systems

DBMS was developed to handle the following difficulties of typical File-processing systems supported by conventional operating systems:

  • Data redundancy and inconsistency
  • Difficulty in accessing data
  • Data isolation – multiple files and formats
  • Integrity problems
  • Atomicity of updates
  • Concurrent access by multiple users
  • Security problems
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Item 8 of 28 · updated 2026-10-12