Neo4j
Neo4j is a native graph database that uses a property graph model to store and query data as nodes, relationships, and properties. It is designed for handling highly connected data and complex relationships, making it ideal for applications like social networks, recommendation engines, fraud detection, and knowledge graphs. Neo4j uses its own query language, Cypher, which is optimized for graph traversal and pattern matching.
Developers should learn Neo4j when working with data that has intricate relationships, such as social networks, supply chains, or network analysis, where traditional relational databases become inefficient due to complex joins. It is particularly useful for real-time recommendation systems, fraud detection in financial transactions, and managing hierarchical or networked data structures, as it allows for fast traversal of connections and intuitive querying of relationships.
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