When to Use NoSQL Databases, MongoDB and Why ?

Author : Fethi Dogan

What are NoSQL databases and Mongo DB? In this post, we will talk about detailed what is Mongo DB and why we do use it. In the last 10 years, NoSQL databases became so popular and most software developers have changed their habits of using the SQL databases. SQL databases are hard to set up on the local computer and they have a steep learning curve when compared to NoSQL databases. These benefits are explaining why most developers love to use NoSQL databases.

NoSQL databases come with some built-in benefits. One of them is no need to set up a database server on your local computer. When you are working with the old SQL databases you have to run your local database on your server or local computer. Setting up the database in your server or local machine and implementing this in your application will take so much time and can get your IT employees exhausted. NoSQL databases such as Mongo DB can work on their websites and also allow you to make your database work on your local server. What is that mean? That means if you want to set up a database, you will need to go and set up a cluster. Cluster means a database. After you set up a cluster you will just set up your admin username and password and it's done. Now you can connect your Node Js, Javascript, Python, or applications made in another language to your Mongo DB database.

When to use NoSQL vs SQL

If you have a startup or if you are looking for something fast and free. You should definitely go with NoSQL databases such as Mongo DB or Firebase. Mongo DB and Firebase have free database options on their websites. The free limitation on Mongo DB will satisfy most startup companies. Ease of use of the NoSQL databases will speed up most companies. You can also use it for storing Millions of data in NoSQL databases without a lack of speed. If you have a big number of data you can give SQL databases a chance.

When you want to speed up development

If you have a development company or if want to speed up your company's development team, you should go with the NoSQL databases. NoSQL databases can be set up and implemented under 10 minutes in to your application. Model design is also super easy to learn and also easy to set up like setting up the database on the website. This ease of use of Mongo DB will speed up your development.

Fast Queries

NoSQL databases are returns the required document as fast as a database running on your local server. You can find all of the documents in with just simply writing a code something like db.collection.find( { } ) . This will simply return all the data inside your collection. You don't need to write complex and long SQL queries to find data in your database.


When you need to scale up your database it will be easy to do that in NoSQL databases. You should simply pick the one of the paid option from the NoSQL database provider. This scaling the database is very hard and time consumer task in SQL databases runs on servers. Because of these benefits, most of the company at any size choose their databases as NoSQL databases.

Easy to group data

When you are working with the NoSQL databases you will not spend hours grouping some specific data. NoSQL database has their own approaches to group data and returns this to the end-user or developer so fast. When developers get familiar with these grouping the data approaches, they will not spend to group millions of data more than 5 minutes.


  • If you have a simple website and if you want to publish it fast as possible NoSQL will be the best option for you.
  • When you have a startup and have less budget for database NoSQL has free options for you.
  • When you want to easily scale your database without any extra effort with a low budget you can go with NoSQL
  • If you want to provide high speed to your application visitors or users you can use NoSQL databases.
  • When you want to speed up your web development or mobile app development you can go with NoSQL databases.
  • If you want your data stored on your servers you can use SQL Databases

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