Introduction of Database

Introduction of Database
What is Data?

  • Data is a raw material.
  • In other words, it is facts and figures which we can use as input for the process.
  • We can not take any actions.
  • Data can be categorized as...
    • Numerical - includes only 0 to 9
    • Alphabets - includes only A to Z or a to z.
    • Others - includes symbols such as !@#$%^&*()_+}:<>?


What is Information?

  • Information is a valuable data.
  • In other words, it is a usable data which we can use as output for real usage.
  • It is a processed or organized data.
  • We can take any action.

What is Database?
  • A database is one of the essential components for many applications.
  • A Database is a collection of related data organized in a way that data can be easily accessed, managed and updated. 
  • Database can be software-based or hardware-based, with one purpose, storing data.
  • It is used for storing a series of data.
  • In other words, it is a group/package of information.
  • There are different types of databases. 
  • Example:
    • Video Databases
    • Audio Databases
    • Text Databases
    • Image Databases
    • Mixed Databases
  • In a database, even the smallest portion of information becomes the data. 
  • Example:
    • a Student is a data.
    • a roll number is a data.
    • the address is data.
  • In brief, all the living and non-living objects in this world are data. 
  • Larry Ellison, the co-founder of Oracle was amongst the first few, who realized the need for a software-based Database Management System.
What is DBMS?
  • DBMS stands for Data Base Management System.
  • A DBMS is a software that allows creation, definition, and manipulation of databases, allowing users to store, process and analyze data easily. 
  • DBMS provides us with an interface or a tool, to perform various operations like creating databases, storing data in it, updating data, creating tables in the database and a lot more.
  • DBMS also provides protection and security to the databases. 
  • It also maintains data consistency in case of multiple users.
  • Example:
    • MySql
    • Oracle
    • SQL Server
    • IBM DB2
    • PostgreSQL
    • SQLite
    • Amazon SimpleDB (cloud-based) etc.

Thanks a lot for query or your valuable suggestions related to the topic.

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