What is database & What's its importance?

What is a database? What's its importance?



How did it evolve and evolve?

We often hear the term databases in institutions, companies, the media, and on websites. We see a bug in the database when we connect to a site, and we hear that the site has been hacked, and the database is stolen from the ministry. What is a database? What is its importance? How did it evolve and evolve? Who works in or on databases? When you open the Word program, write a topic, save it with a specific name, and after a while you come and look for the file, you type its name in the search box from the start and it shows you, then you search for a word in the file and find it, In a given file, what if we had a huge volume of data, with numbers and calculations, and dependent on each other?


How will it be accessed and controlled?

The phone number system in your mobile device is one of the databases, so you can get the name from its first name, last name, e-mail address, home number, or number if all this data is registered.


Knowledge of the databases: Information is taught by programmers and computer engineers, who create, link and use databases, and create databases for enterprises and companies that are used by ordinary users to facilitate their business and business access and update data.

Also Read : What is SSL Certificate? & Encrypted https Protocol

What are databases?

It is a set of data arranged, in a logical and logical sequence, with logical mathematical relationships, consisting of the form of tables from a table or more, in each table a set of rows and columns, which distinguish the data in which they are. For example, the employee data table will find the following columns: (employee number - employee's name - employee's section) .The programmer is responsible for programming the databases by creating all the tables for the establishment system, ministry, company, school, clinic, mobile application, etc. The user should not work on it, enter his data and control it as he wants. Database design is easy to handle, despite its internal complexity. The types of databases differ according to the mathematical logic on which they were founded.


Relational database: This is one of the most common rules used by humans to coordinate information, and it relies on linking tables and information more easily in order to quickly access the information required. The database is based on the hierarchical structure of the work, since it creates a sequence of origin or root. This system begins to branch in the form of partitions. Its principle is to access the data in a sequential and branching way. From bottom to top or from top to bottom.


Structural structure of the database: It is in the form of a structure between information and data. Programs that create databases through many; but the simplest is: Microsoft Access, the most famous: Oracle, MySQL, or so called (Visual Studio). Functions that fall under the databases: May be divided and divided in detail; but generally are under two basic functions, namely: database programmer, database manager. The programmer includes several functions as follows: Create the databases. Update databases. Run the databases. Maintenance of databases. Protecting and securing data integrity.

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