The relationship direction between two nodes is required for Cypher write queries, but can be ignored on Cypher read queries. Cypher is a graph database declarative and textual query language by Neo4j, which supported by a larger group as OpenCypher to make Cypher the SQL for graph databases. Cypher looks a bit like ASCII art in it’s representation of graph-related traversal patterns, which makes it quite intuitive and fun to use in querying graphs. Read more…