Introduction of DBMS

Introduction of DBMS

  • Databases and database systems are an essential part of our everyday life. 
  • For example, they facilitate depositing and withdrawing money from a bank, making hotel, airline, or railway reservations, accessing computerized libraries, and purchasing items from supermarkets, among others. 
  • We can store and access information in textual, numeric, audio, and multimedia formats from the database.
  • For instance, multimedia databases store pictures, video clips, and sound messages, while geographical information systems (GIS) store maps, weather data, and satellite images.

DATA

  • Data are facts and statistics stored or free-flowing over a network. Generally, it is raw, meaningless, and unprocessed.
  • Data may be text, numbers, symbols, audio, and video, etc., ex. bank account numbers; bank customers’ names, addresses, and ages; bank transactions, and so on.

INFORMATION: - 

  • Meaningful arrangement of data, which is processed according to context, relevance, and purpose.

Record: -

  • A group of related information.

File: -

  • Group of related records.

Database: -

  • A collection of related files or tables, in this data can be easily accessed, managed, and updated.

DBMS: -

  • A software. Perform various operations like creating a database, storing data, updating data, creating tables, etc.
  • Provides protection and security to the databases and maintains data consistency in multiple user environments.



================================================================

Post a Comment

0 Comments