Graph databases can solve many problems, The important use case for graph databases are:-

Using a graph database user can build a real-time fraud detection and analytics relationship graph, which helps in detecting fraud.

A graph database can be very useful to represent the network and database infrastructure.

An organisation can use a graph database to get 360 views of their data and customers.

A graph database can be used to represent social media and social network connections.

The security team can build a graph dashboard for the user/customer identity and access management.

A graph database can be used to build knowledge graphs which helps in a quick search.

Pharmaceutical companies can use the graph database to analyse complex chemical structures.