Neo4jとそのアーキテクチャの紹介

Meet Neo4j, the leading graph database — built from the ground up to store and traverse highly connected data fast.

Neo4j treats relationships as first-class citizens. That's exactly what social networks, recommendations, and fraud detection need.

Neo4j runs on the Property Graph Model: nodes (entities), relationships (how they connect), and properties (key-value details on both).

Neo4j's edge is native graph storage — it stores nodes and relationships directly instead of forcing them into tables, so deep traversals fly.

You query Neo4j with Cypher, a declarative language whose ASCII-art syntax of arrows and parens reads like a graph you'd sketch on a whiteboard.

Here's a tiny taste of Cypher — it just returns a friendly message. You'll run queries like this in the Neo4j Browser.

Neo4j brings the heavy hitters: ACID transactions, fast queries on connected data, a schema-optional model, scalability, and a rich ecosystem.

Neo4j powers recommendation engines, fraud detection, social networks, IT operations, and knowledge graphs across many industries.

Neo4j is a whole platform: Desktop to manage databases, Browser to query and visualize, official drivers, and a Graph Data Science library.

You met Neo4j — its Property Graph Model, Cypher, native storage, and ecosystem. Next, you'll set up your own environment.