Create a node

CREATE (neo:Company) //create node with label 'Company'

CREATE (neo:Company {name: 'Neo4j', hq: 'San Mateo'}) //create node with properties

Create a relationship

CREATE (beginning_node)-[:edge_name{Attribute:1, Attribute:'two'}]->(ending_node)

Query Templates

Running neo4j locally, in the browser GUI (default: http://localhost:7474/browser/), you can run the following command to get a palette of queries.

:play query template

This helps you get started creating and merging nodes and relationships by typing queries.

CREATE (beginning_node)-[:edge_name{Attribute:1, Attribute:'two'}]->(ending_node)

Delete all nodes

MATCH (n) 
DETACH DELETE n

DETACH doesn't work in older versions(less then 2.3), for previous versions use

MATCH (n)
OPTIONAL MATCH (n)-[r]-()
DELETE n, r

Delete all nodes of a specific label

MATCH (n:Book) 
DELETE n

Match (node_name:node_type {}), (node_name_two:node_type_two {})
CREATE (node_name)-[::edge_name{}]->(node_name_two)

MATCH (n) 
WHERE n.some_attribute = "some identifier" 
SET n.other_attribute = "a new value"

Orphan nodes/vertices are those lacking all relationships/edges.

MATCH (n)
WHERE NOT (n)--()
DELETE n