Cypher - DELETE

     删除节点 / 关系

DELETE <node-name-list>

DELETE <node1-name>,<node2-name>,<relationship-name>

//删除关系

match (u1:User)-[r]->(u2:User)
where u1.id = 8
delete r

//删除节点

match (u:User)
where u.id = 5
delete u                      //删除节点以前，必须先删除关系

//删除节点和其全部关系

match (u:User)
where u.id = 8
detach delete u

//删除数据库中的全部节点

match(n)
detach delete u