Neo4j命令

Neo4j命令

删除所有节点和关系

MATCH (n)
OPTIONAL MATCH (n)-[r]-()
DELETE n,r

Delete all nodes and relationships

MATCH (n) DETACH DELETE n

删除索引

DROP INDEX ON :player(Goals)

删除唯一索引

drop constraint on (s:Teacher) assert s.name is unique

删除属性数据（标签删不掉）

MATCH (n)
REMOVE n.detail

删除顺序

关系 属性 节点 索引

导入node

LOAD CSV WITH HEADERS  FROM "file:///cctv_news.csv" AS line  
CREATE (p:CCTV_NEWS{blog_id:line.blog_id,text:line.text,time_format:line.time_format,source:line.source,reposts_count:line.reposts_count,comments_count:line.comments_count,attitudes_count:line.attitudes_count})

创建索引

CREATE CONSTRAINT ON (c:CCTV_NEWS)
ASSERT c.blog_id IS UNIQUE