Neo4j Beginner Delete Statement

2
votes

I am learning NEo4j from last few days. I created node with Relationship from NEO4j online tutorial.

  1. Create node Mystic River using Statement 

    CREATE (:Movie {title:"Mystic River", released:1993})

  2. Create node Kevin 

    CREATE (:Person {name: "Kevin Beacon",born:1998});

  3. Added Relationship 

    MATCH (p:Person),(m:Movie) WHERE p.name="Kevin Beacon" and m.title="Mystic River" CREATE UNIQUE (p)-[:ACTED_IN{role:["Sean"]}]->(m) RETURN p,m;

Is there any way to rename existing relationship delete relationship between two node and create new relationship.

Alternatively I deleted node and realtionship by detach delete. and then recreated new one. 

MATCH (n:Movie{title:"Mystic River"}) DETACH DELETE n;

Kindly suggest if there is rename of relationship.

Regards Faizan

1
neo4jcypher

1 Answers

2
votes

You can't rename already existing relationship, but you can copy it and delete an old one.

Create data 

Create (p:Person)-[r:RELATED{time:timestamp()}]->(b:Team) return *

Copy old relationship with new name and deleting old one.

Match (p:Person)-[r:RELATED]->(b:Team) 
with * Create (p)-[r2:NEW_NAME]->(b) 
set r2 = r with * 
delete r 
return p, b