Cypher - DELETE

     刪除節點 / 關係

DELETE <node-name-list>

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

//刪除關係

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

//刪除節點

match (u:User)
where u.id = 5
delete u                      //刪除節點以前，必須先刪除關係

//刪除節點和其全部關係

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

//刪除數據庫中的全部節點

match(n)
detach delete u