如何将分割节点连接到另一个节点？-Java 学习之路

我目前正试图在我的neo4j数据库中导入一个csv文件，其中包含movie-id，director和actors . 它看起来像这样的csv：

|id|    directors   |           actors                |
 |33|Steven Spielberg|Tom Hanks; Brad Pitt; Tim Allen  |
 |34|John Lasseter   |Ryan Goslin; Brad Pitt; Tom Hardy|

我的问题：我能够将演员分成独立的节点，但是他们没有连接到他们演出的MovieID .

在为影片ID和导演/演员名称设置了唯一约束后，我的Cypherquery看起来像这样：

LOAD CSV WITH HEADERS FROM  
 'file:///C:/Users/Jens/Documents/SeminarDB/kleinefilmDB.csv' AS line
 CREATE (movie:Movie {id: TOINT(line.id)}) 
 MERGE (director:Director {name: line.director} )
 FOREACH (n IN SPLIT(line.actors, ";")| MERGE (actor:Actor {name: n}))

 CREATE (actor)-[:ACTED_IN]->(movie)
 CREATE (director)-[:DIRECTED]->(movie)

1 回答

您需要在FOREACH中创建关系 .

LOAD CSV WITH HEADERS FROM  
'file:///C:/Users/Jens/Documents/SeminarDB/kleinefilmDB.csv' AS line
CREATE (movie:Movie {id: TOINT(line.id)}) 
MERGE  (director:Director {name: line.director} )
CREATE (director)-[:DIRECTED]->(movie)   
FOREACH (n IN SPLIT(line.actors, ";")| 
         MERGE (actor:Actor {name: n})
         CREATE (actor)-[:ACTED_IN]->(movie)
        )

回复于 2024-05-02T19:43:01+08:00

如何将分割节点连接到另一个节点？

1 回答

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