When should I use a NoSQL database instead of a relational database?

When should you use NoSQL over SQL?

If your data is very structured and ACID compliance is a must, SQL is a great choice. On the other hand, if your data requirements aren't clear or if your data is unstructured, NoSQL may be your best bet. The data you store in a NoSQL database does not need a predefined schema like you do for a SQL database.

Are NoSQL databases better than relational databases?

NoSQL is faster than relational database management system because it uses different data structure compared to relational databases. Cassandra data structure is faster than relational database structure. NoSQL databases are mainly used in Bigdata and real time web applications.

When would you use a non relational database?

Non-relational databases are often used when large quantities of complex and diverse data need to be organized. For example, a large store might have a database in which each customer has their own document containing all of their information, from name and address to order history and credit card information.