如何從csv文件導入數據

Question

我是neo4j中的新手，我試圖從兩個csv文件導入數據，但我無法做到。 兩個CSV文件的結構如下：

master.csv：

ID NAME LASTNAME  COLLEGE 

01 aaa  bbb   ABC 
02 xxx  yyy   BCE 

award.csv：

playerID award     year 

01   best_player   2010 
01   rookie_of_the_year  2011 
02   best_player   2012 

我怎樣才能創建pl的節點ayers和獎項以及我如何連接它們？

我嘗試使用此代碼：（但顯然它不工作）

CREATE CONSTRAINT ON (a:PLAYER) ASSERT a.id IS UNIQUE; 

CREATE CONSTRAINT ON (b:AWARD) ASSERT b.award IS UNIQUE; 

USING PERIODIC COMMIT 
LOAD CSV WITH HEADERS FROM "File:///master.csv" as line fieldterminator ';' 
CREATE (:PLAYER {id:line.playerID, name:line.firstName, lastName:line.lastName}); 

USING PERIODIC COMMIT 
LOAD CSV WITH HEADERS FROM "File:///award.csv" as line fieldterminator ';' 
MATCH (player:Player {id:line.playerID}) 
MERGE (award:AWARD {award:line.award}) 
CREATE (player)-[r:won]->(award) 
set r += {year:line.year} 

如果我還要爲學校添加節點，是不是？

CREATE CONSTRAINT ON (c:COLLEGE) ASSERT c.name IS UNIQUE; 

USING PERIODIC COMMIT 
LOAD CSV WITH HEADERS FROM "file:///master.csv" as line fieldterminator ';' 
WITH line 
MATCH (player:PLAYER {id:line.playerID}) 
MERGE (college:COLLEGE {name:line.college}}) 
CREATE (player)-[:studied]->(college) 

感謝

Answer 1

至於我可以看到它主要是在你的語句中使用正確的大小寫/箱/案例的問題。根據您顯示的內容是我想出了這樣的輸入（爲我工作）：

CREATE CONSTRAINT ON (a:PLAYER) ASSERT a.id IS UNIQUE; 
CREATE CONSTRAINT ON (b:AWARD) ASSERT b.award IS UNIQUE; 

USING PERIODIC COMMIT 
LOAD CSV WITH HEADERS FROM "file:///master.csv" as line fieldterminator ';' 
CREATE (:PLAYER {id:line.bioID, name:line.firstName, lastName:line.lastName}); 

USING PERIODIC COMMIT 
LOAD CSV WITH HEADERS FROM "file:///award_players.csv" as line fieldterminator ';' 
WITH line 
MATCH (player:PLAYER {id:line.playerID}) 
MERGE (award:AWARD {award:line.award}) 
CREATE (player)-[r:won]->(award) 
SET r += {year:line.year}; 

希望這有助於，湯姆