1.创建节点
create (n) ;
view created node
match (n) return n;
2. 创建多个节点
create (n),(m) ;
match (n) return n;
3.通过id搜索节点
match (n) where id(n)=1 return n;
搜索时可以使用<. <= .. 这些关系操作
match (n) where id(n)<=6 return n;
match (n) where id(n) in [1,2,0] return n;
4.删除节点
match (n) where id(n) = 1 delete n;
match (n) return n;
delete multi node
match (n) where id(n) in [2,3] delete n;
删除所有节点
match (n) delete n;
更快的全库删除方法：
sudo service neo4j stop
sudo service neo4j start
sudo service neo4j status
sudo rm -rf /var/lib/neo4j/data/*
5.通过标签搜索节点
create (n:Person) ;
match (n) where n:Person return n;
create node with multi labels
create (n:Person:Indian)
match (n) where n:Person:Indian return n;
match (n) where n:Person or n:Indian return n;
6. 为已存在节点添加标签
match (n) set n:Employee return n;
match (n) where id(n)=0 set n:Manager return n;
match (n) where id(n) in [2,3] set n:TeamLeader;
7. 删除标签、更新标签
match (n) remove n:Person return n;
match (n) where id(n) in [2,3] remove n:Employee return n;
match (n) remove n:Vacation:Food return n;
match (n) where id(n) =0 remove n:Manager set n:Director return n;
8.查询标签
match (n) return distinct labels(n);
match (n) where id(n)=0 return labels(n);
match (n) return distinct count(labels(n));
match (n) return disinct count(lables(n)),labels(n);
match (n) where n:TeamLeader delete n;
9.创建有属性的节点
create (x:Book{title:"The White Tigger"}) return x;
create (x:Book{title:"The Three Mistakes of My Life",author:"Chetan Bhagat",publisher:"Rupa * Co."}) return x;
create (n:Book{title:"红楼梦",author:"曹雪芹",Author:"高鹗"}) return n;
create (n:Book{title:"藏山雷法",author:"",`Edition Language`:"Chinese"}) return n;
10.节点属性数据类型
create (x:Person{name:["孙悟空","齐天大圣"]}) return x;
11.通过属性搜索节点
match (n:Book{author:"abc"}) return n;
match (n:Book) where n.price < 1000 and (n.author = 'abc') return n;
match (n:Book) where toInt(n.pages) = 528 return n;
12.更新节点属性
match (n) where n.title = "xxx" set n.title="yyy" return n;
match (n:Book{title:"xxx"}) set n.title = "yyy" return n;
复制节点属性
13.删除节点属性
14.import csv
些的cypher语法
