NoSQL Databases: What are They and Why Use Them?


When it comes to data storage, there are a few different options to choose from. You can go with a traditional RDBMS (Relational Database Management System), which uses tables and relationships to store data. Or you could go with a Document Store, which stores data as self-contained documents. And then there’s the NoSQL category, which doesn’t use tables or documents as the other two types do – instead, it relies on flexible schemas and key/value pairs.NoSQL databases are a new type of database that is growing in popularity.

What are NoSQL Databases? 

NoSQL stands for “not only SQL” and refers to the different benefits these databases offer compared to traditional relational databases.

NoSQL Database offers faster access times because they don’t rely on disk-based searches as traditional relational DBs do. This means that you can search through your data much more quickly than if you were using a regular database. Additionally, NoSQL DB is less rigid than traditional DB, which makes them easier to use when scaling up or down your system.

Finally, one of the main reasons people are switching to NoSQL Databases is their relative simplicity; this is in comparison to traditional Database management systems (DBMSs), which can be quite complex and difficult to learn.

What are the advantages of using NoSQL databases? 

NoSQL databases are great for scalability and performance. They offer a lot of flexibility and customizability, which can help you quickly build data warehouses or create interactive applications. Some key benefits of using NoSQL DB include:

1. Scalable: Unlike traditional relational database systems (RDS), which max out at around 100GB in size, NoSQL DB handle large volumes of data with ease. For example, MongoDB stores more than 2 billion documents.
2. Fast: With a fast indexing system, NoSQL DB can access your data very quickly, making it ideal for high-volume applications. For example, Cassandra indexes every document within seconds, making it an excellent choice for real-time analysis and reporting. 
3. Modular: NoSQL storage engines allow you to easily add new features without affecting the overall performance of your application. This modularity enables you to tailor your database to meet specific needs without having to start from scratch. 
4. Interoperable: Many different types of operating systems support NoSQL Database, so they’re easy to deploy on diverse platforms like web servers, cloud services etc

Why use a NoSQL database? 

Relational databases have been the industry standard for over 30 years. They are slow, resource intensive, and difficult to scale up and down. In contrast, NoSQL DBs offer a lot of advantages over a traditional relational database:

  1. NoSQL databases are faster 
  2. NoSQL databases are less resource intensive 
  3. NoSQL databases allow for better data integrity 
  4. NoSQL databases can be scaled up or down more easily


In conclusion, NoSQL databases are a great option for many applications due to their scalability, flexibility, and performance. They can be used in a number of different ways and offer many advantages over traditional relational databases. If you’re looking for a NoSQL database solution, be sure to consider all of your options and choose the one that best fits your needs.

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