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What Is Relational Database | Different Database management systems



What Is Relational Database

What Is Relational Database
What Is Relational Database

Introduction: What Is Relational Database

Database :

Before discussing “Relational Database”. We should take a look at the term “Database”. What is meant by “Database”?. Here is the brief answer to the question of what is database and its importance. 

The full abbreviation of Database is Database Management System (DBMS). Usually, in short, it is said as Database. The database is a set of data or information which is electronically stored on a computer system. The set of instructions are stored on a system that helps the user to maintain its record. Database stores information in the form of columns and rows.

Applications of Database are in a wide range. Usually, it is used by companies who are running their e-commerce websites, in which record of an employee, such as salaries of an employee, information about their products, when products were purchased and sold out, all information with date and time is stored on their system in form of a Database.

All information related to an inventory of a product and record of a customer is used by the Database. All e-commerce websites use Database Management System (DBMS). For instance, FileMaker Pro, Microsoft Access, and MySQL are used as “Back End” in a system.

By saving site information in a database helps the user to find, search and browse data easily. Also, the user can update it whenever he wants. This Database Management System is important for e-commerce websites and websites which is based on coding such as Dynamic Websites.

Also read this difference: Database VS File system 

In early times databases were simple and too limited. In which they contain only columns and rows. Which was also known as “Flat Database”. But, nowadays, relational databases enhanced the system of a database, which provides more facility and helps the user to operate it easily.

In this article you will learn :

  • Database
  • Relational Database
  • SQL
  • Different Relational Database Management System (RDBMS)
  • MySQL
  • PostgreSQL
  • Oracle DB

What Is Relational Database?

A relational database is a type of database that enables the users to find and access data easily. It provides the facility to find part of the data which is related to other data.

A relational database is a type of Database that enables its users to search, update and access information that is stored in the form of tables. In early times, the database only allows users to store numeric or text data, but new databased enables the user to store other types of data such as videos, pictures, and other documents.

Often, in a relational database, information and data are stored in form of tables. Each table contains unique and complete information. The number of rows can be in hundreds or even in millions. These rows may also be called “records”.

Tables may also include many columns containing data and they have a certain type of data.

Relational Database Management enables you to update, create and manage relational data. A relational database uses different languages. The most used language by the relational database is SQL language to manage a database.

Some people are believing that SQL is a programming language to solve this question read this article: Is SQL a programming language? 


The full abbreviation of SQL is“Structured Query Language”. It is a programming language that is used for the interpretation of data that is stored in a relational database management system. This language is very near to the English language. In this way, it becomes easier for the users to read, write and interpret.

SQL is the most used programming language by Relational Database Management System (RDBMS). Also, there are some different versions of SQL which are slightly different from each other. These languages provide access to data that is present in tables in a relational database.

For instance, SQLite is a variant of SQL. The SQLite has some set of commands which are the same as in SQL. Other relational databases might also use different variants of SQL.

You can pronounce SQL, speaking by individual letters like “S – Q –L” or you can say it as “Sequel”.

Different Relational Database Management System :

SQL is the most used language by RDBMS. But different variants of SQL are also used which are described below :

1. MySQL :

MySQL is the most renowned database of SQL. It is mostly used in the development of web applications. And also, mostly used while interpreting PHP. There are many advantages of MySQL, a few are given below :

  • Affordable
  • Easy to use
  • Reliability
  • Developers are in a dense community, which can help you by answering questions.

There are also some disadvantages of this variant, which are given below :

  • Its performance is poor while scaling
  • Advanced features are not included, that should be introduced by the developers

2. PostgreSQL :

PostgreSQL is another variant of SQL database which is independent of any corporation. It is often used for the development of web applications. PostgreSQL has also advantages same as MySQL.

It is also very easy to use, reliable and affordable. The helping team is always available for solving your problems by answering the questions asked by the users.

Besides, it provides some unique features, for example, it gives you foreign key support.

The most faced disadvantage of PostgreSQL is that its performance might be slower as compared to other databases, for instance, MySQL. Another factor that, it is not famous like MySQL.

3. Oracle DB :

Oracle Corporation has its database, known as “Oracle Database”. And its code is not open-sourced.

Oracle DB is designed for heavy applications, such as for the baking sector. Many banks like to use Oracle applications because it is very powerful and makes a lethal combination between technology and necessary functionality.

The most faced disadvantage by the users of Oracle is that is a paid application and it is expensive and it doesn’t fall in a budget category.

Conclusion: What Is Relational Database

Nowadays, technology is progressing day by day. Especially in the field of electronics including, computer programming languages, smartphones, databases, and in many other industries.

Databases made easier for the e-commerce sites owner to manage their record and data related to their products and inventory of products. And also, web developing sites took many advantages of this latest relational database.

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