Graph Databases

Graph Data Storage

Optimized for relationships.

Structure

Nodes: entities. Edges: relationships. Properties: attributes.

Systems

Neo4j: popular, Cypher query. Amazon Neptune: managed. JanusGraph: open source.

Use Cases

Social networks. Knowledge graphs. Fraud detection. Recommendation engines.

Key Takeaways

1. Nodes and edges for relationships
2. Neo4j is popular
3. Good for connected data