Difference between revisions of "Neo4j"
From John Freier
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Create Node | Create Node | ||
CREATE (n:Label {property:'value'}) return n; | CREATE (n:Label {property:'value'}) return n; | ||
| + | |||
| + | Create a Relationship | ||
| + | MATCH (n1:Node), (n2:Node) CREATE (n1)-[r:RELATIONSHIP]->(n2); | ||
| + | CREATE (n1:Node)-[r:RELATIONSHIP]-(n2:Node) return n1, n2; | ||
Find Node By Id | Find Node By Id | ||
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Update Nodes properties | Update Nodes properties | ||
MATCH (n { name: 'John' }) SET n.surname = 'Doe' RETURN n | MATCH (n { name: 'John' }) SET n.surname = 'Doe' RETURN n | ||
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| − | |||
| − | |||
| − | |||
== Neo4J Export == | == Neo4J Export == | ||
Revision as of 12:55, 22 December 2015
Neo4J
Start Up
bin/neo4j start
as a script
bin/neo4j $1
Sample Cypher
Create Node
CREATE (n:Label {property:'value'}) return n;
Create a Relationship
MATCH (n1:Node), (n2:Node) CREATE (n1)-[r:RELATIONSHIP]->(n2); CREATE (n1:Node)-[r:RELATIONSHIP]-(n2:Node) return n1, n2;
Find Node By Id
MATCH (n:Label) WHERE Id(n) = 0 RETURN n;
Delete Node by Id
MATCH (n:Node) WHERE Id(n) = 0 DELETE n;
Delete All Nodes and Relationships pre 2.3.0
MATCH (n) OPTIONAL MATCH (n)-[r]-() DELETE n,r;
2.3.0 +
MATCH (n) DETACH DELETE n
Update Nodes properties
MATCH (n { name: 'John' }) SET n.surname = 'Doe' RETURN n
Neo4J Export
Export database as Cypher
bin/neo4j-shell -c dump > ./filename.cypher
Import database as Cypher
bin/neo4j-shell -file ./filename.cypher
Execute database statement
bin/neo4j-shell -c "MATCH (n) OPTIONAL MATCH (n)-[r]-() DELETE n,r;"
