Neo4j加載csv文件

Question

我想了解如何按照LearningNeo4j書的「導入使用加載CSV」一章中的說明，在Neo4j中導入csv文件。該代碼我執行I S如下：

load csv with headers from 
"file:C:/wamp/www/fantapappa/nodes.csv" 
as nodes 
create (n {id: nodes.Node, name: nodes.Name, type: nodes.Label}) 
return n 

load csv with headers from 
"file:C:/wamp/www/fantapappa/rels.csv" 
as rels 
match (from {id:rels.From}), (to {id: rels.To}) 
create from-[:REL {type: rels.'Relationship'}]->to 
return from, to 

match (m {type:"Male"}), (f {type:"Female"}) 
set m:Male, f:Female 
return m,f 

到目前爲止一切正常，但是當我試圖建立這樣的關係：

match (n)-[r1 {type:"MOTHER_OF"}]->(m), (s)-[r2 {type:"FATHER_OF"}]->(t) 
create n-[:MOTHER_OF]->m, s-[:FATHER_OF]->t 
return *; 

match()-[r:REL]-() delete r; 

我無法比擬的東西。我只是簡單地複製並過去了本書的代碼，但我無法建立關係。有人能幫我嗎？

P.S. CSV文件時：

nodes.csv 
Node,Name,Label 
1,Amada Emory,Female 
2,Rana Seely,Female 
3,Detra Thatcher,Female 
4,Melda Reza,Female 
5,Shana Willems,Female 
6,Sharonda Peele,Female 
7,Dagny Agee,Female 
8,Tisa Woodman,Female 
9,Shelba Mutcheler,Female 
10,Anderson Spagnola,Male 
11,Pamela Forward,Female 
12,Melva Fairchild,Female 
13,Antione Selman,Male 
14,Carmela Cali,Female 
15,Fairy Daughtery,Female 
16,Stefany Mcamis,Female 
17,Kermit Meaney,Male 
18,Williemae Dossantos,Female 
19,Marth Sparling,Female 
20,Jarvis Noland,Male 

rels.csv 
From,Name,Relationship ,To,Name 
1,Amada Emoroy,MOTHER_OF,11,Pamala Forward 
1,Amada Emoroy,MOTHER_OF,12,Melva Fairchild 
1,Amada Emoroy,MOTHER_OF,13,Antione Selman 
2,Rana Seely,MOTHER_OF,14,Carmelia Cali 
2,Rana Seely,MOTHER_OF,15,Fairy Daughtery 
2,Rana Seely,MOTHER_OF,16,Stefany Mcamis 
3,Detra Thatcher,MOTHER_OF,17,Kermit Meaney 
3,Detra Thatcher,MOTHER_OF,18,Williemae Dossantos 
3,Detra Thatcher,MOTHER_OF,19,Marth Sparling 
10,Anderson Spagnola,FATHER_OF,20,Jarvis Noland 
14,Carmelia Cali,MOTHER_OF,1,Amada Emory 
11,Pamela Forward,MOTHER_OF,2,Rana Seely 
11,Pamela Forward,MOTHER_OF,3,Detra Thatcher 
12,Melva Fairchild,MOTHER_OF,4,Melda Reza 
12,Melva Fairchild,MOTHER_OF,5,Shana Willems 
12,Melva Fairchild,MOTHER_OF,6,Sharonda Peele 
17,Kermit Meaney,FATHER_OF,7,Dagny Agee 
13,Antione Selman,MOTHER_OF,8,Tisa Woodman 
13,Antione Selman,MOTHER_OF,9,Shelba Mutchler 
20,Jarvis Noland,FATHER_OF,1,Amada Emory 

編輯剛剛複製的代碼

IM和我得到以下

我很抱歉，但你的鏈接，我不能很明白wath你dooing 。

Answer 1

關係中的type屬性未創建。所以你的比賽不會結束。

這是因爲在你的頭，在Relationship立柱稍稍後有空間，你需要的空間，反引號的列名：

rels.`Relationship ` 

-

load csv with headers from 
"file:C:/wamp/www/fantapappa/rels.csv" 
as rels 
match (from {id:rels.From}), (to {id: rels.To}) 
create from-[:REL {type: rels.`Relationship `}]->to 
return from, to 

此外，我會建議你要檢查哪些標籤和索引，以加速插入更大的數據集。

編輯

我已經上傳您的CSV的一個要點，並在Neo4j的控制檯運行的全過程在這裏http://console.neo4j.org/r/hrao50：

LOAD CSV WITH HEADERS FROM "https://gist.githubusercontent.com/ikwattro/2a38a2f71a7ebc8a6681/raw/da5b47ceab9a9d93f62a12ee1fe8224788c0d861/nodes.csv" 
AS nodes 
create (n {id: nodes.Node, name: nodes.Name, type: nodes.Label}) 
return n 

LOAD CSV 
WITH HEADERS FROM "https://gist.githubusercontent.com/ikwattro/2a38a2f71a7ebc8a6681/raw/da5b47ceab9a9d93f62a12ee1fe8224788c0d861/rels.csv" 
AS rels 
match (from {id:rels.From}), (to {id: rels.To}) 
create from-[:REL {type: rels.`Relationship `}]->to 
return from, to 

MATCH (m { type:"Male" }),(f { type:"Female" }) 
SET m:Male, f:Female 
RETURN m,f 

match (n)-[r1 {type:"MOTHER_OF"}]->(m), (s)-[r2 {type:"FATHER_OF"}]->(t) 
create n-[:MOTHER_OF]->m, s-[:FATHER_OF]->t 
return *; 

和圖形似乎是正確創建。你可以用你的灰色圖表截圖來更新你的問題。

請注意，也許您需要通過在瀏覽器控制檯編輯器中發出:style reset命令來重置圖形的樣式。