Neo4J：删除关系

1、现有关系

MATCH (n:Person) RETURN n;

2、不能删除含有关系的节点

MATCH(p:Person) DELETE p;

Neo.ClientError.Schema.ConstraintValidationFailed: Cannot delete node<1153>, because it still has relationships. To delete this node, you must first delete its relationships.

3、删除指定关系

MATCH (p1:Person)-[r:LOVES]-(p2:Person) 
DELETE p1,p2,r

注意，delete子句的格式是DELETE ,,

剩下的实体关系

4、DETACH DELETE

MATCH(p:Person)
DETACH DELETE p;