Neo4j is the popular open source Graph Database which is developed using Java technology. It is a highly scalable native graph database that leverages data relationships as first-class entities, helping enterprises build intelligent applications to meet today’s evolving data challenges.
The main advantage of neo4j that need to point out is, we will get superior query performance for connected data. Secondly, it saves cost and operational complexity. It uses transactions to guarantee that data is persisted in the case of hardware failure or system crashes and stores hundreds of trillions of entities for the largest datasets. It is part of the NoSQL movement. It is also open source. Neo4j was first released in 2010 and its adoption has grown ever since. The neo4j website claims that “for connected data operations, Neo4j runs a thousand times faster than relational databases.”. Also, contains a UI to execute CQL Commands which is human readable and understandable and very easy to learn. Supports full ACID (Atomicity, Consistency, Isolation, and Durability) rules. Neo4j clustering is designed to support business-critical and high-performance applications. For enterprises to begin converting their data into business value this data must be connected and this will be very easy with a graph database like neo4j. Unlike other databases, relationships take priority in graph databases. This means our application doesn’t have to infer data connections using things like the foreign key in MySQL and supports exporting of query data to JSON and XLS format. Not only do graph databases effectively store data relationships, they’re also flexible when expanding a data model or conforming to changing business needs.
The flexibility, performance, and scalability of Neo4j make it possible to manage and they allow data professionals at every level to exploit the potential of their data relationships where traditional technologies cannot handle so much data. Another important point to mention is that its simplicity. Neo4j does NOT require complex Joins to retrieve connected/related data as it is very easy to retrieve its adjacent node or relationship details without Joins or Indexes. The Neo4j graph database is enabling rapid development and agile maintenance. Social networks prefer Neo4j effectively connects people with our products and services, based on personal information, their profiles on social networks and their recent online activity. Neo4j’s application is only limited by your imagination.