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Database – What is it, Its Types and Database Management System
What Is

Database – What is it, Its Types and Database Management System

What is a Database?

A database is a collection of homogeneous information. Furthermore, it can be said that they are systematically structured data repositories where they are stored and can be retrieved quickly.

In addition, a database is the collection of files that can be accessed by a set of programs that contain related data. A database query is a request statement to retrieve information.

Examples of Daily life Databases

  • The registration of students from a college or university.
  • The patient record of a doctor’s office or hospital.
  • And also, the database of books and magazines in a library or bookstore.
  • The bank statements of clients of a financial institution.

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What is a Database for?

  • Organize large amounts of data to extract relevant information.
  • Obtain information on habits: Companies like use their clients’ databases to make suggestions about new purchases.
  • Facilitate the search and consultation of information: A library database allows you to search for a book or magazine more quickly than using a file or searching manually.

Database Types

The databases are classified into three groups:

  • Hierarchical databases: presents a hierarchical structure, that is, in a tree.
  • Networked databases: the structure is interconnected.
  • Related databases: it is made up of tables that present mathematical relationships.

Data Types of Databases

Data are the objects on which a computer operates and the facts recorded in a database. Furthermore, they can be of various basic types:

  • Numerical,
  • Logical and
  • Alphanumeric characters.

Raw data

Raw data is when neither an organization of the data nor provides valuable information.

Personal information

When we buy an item in a shop or online store, they usually ask us for our personal information:

  • Name,
  • Date of birth,
  • Phone number,
  • Direction,
  • Credit card number, among others.

The registration of the client’s data is in the merchant’s database, which stores them for later processing and taking advantage of them.

Operating data

They are the data associated with the operations of an organization. Examples of corporate data are the number of employees, names, work start date, salary, vacation, daily earnings, customers, products, etc.

Scientific data

In scientific research, it generates a lot of data. For example, to make the first image of a black hole, it collects 5 petabytes of digitized data.

Database Management Systems

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DBMS or [Database Management Systems] serve as intermediaries between the database stored on the computer and the application that requests the data. And also, its objective is to retrieve information and store new information in the database.

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Database systems applications

There is wide use of databases in various situations:

  • Commerce: to store information about sales, purchases, inventory, and customers.
  • Telecommunications: to make a record of bills, calls, phone cards, communication networks.
  • Human resources: to have information on employees, salaries, bonuses, and performance.
  • Airlines: to make reservations and access to different travel plans and costs.
  • Banks: maintain customer information and bank transactions.

Also Read: CRM Implementation: 5 Tips for Those Responsible for a CRM Implementation

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