Correctly importing CSV File into Neo4j database
I am currently trying to import a csv file into neo4j.
Now for example lets see the following file:
node1,node2
value1,value2
value2,value3
value1,value2
Now what I am trying is to import those lines so that
nodes 1 and 2 will be connected, while identical nodes only exist once.
So I guess I will need to do the MERGE command which seems to work with
the following CQL Request:
LOAD CSV WITH HEADERS FROM "file:///test_text.csv" AS line
MERGE (u :word value: line.node1 )
MERGE (h :word value: line.node2 )
MERGE (u)-[t :digram]->(h)
Now I want to achieve, that connections between 2 nodes, which occur
multiple times in my csv file (like value1 to value 2 in the example above)
are represented by an attribute "count" in the corresponding connection.
So the connection between value1 and value2 has a attribute count=2.
I have tried to do that by appending the following line:
ON MERGE SET t.count = t.count + 1 ON CREATE SET t.count = 1
But that throws a syntax error. I am kind of lost at the moment and I am hoping
you guys could help.
Thank you very much.
csv import neo4j
asked Nov 12 '18 at 22:56
marcels93marcels93
162
add a comment |
I am currently trying to import a csv file into neo4j.
Now for example lets see the following file:
node1,node2
value1,value2
value2,value3
value1,value2
Now what I am trying is to import those lines so that
nodes 1 and 2 will be connected, while identical nodes only exist once.
So I guess I will need to do the MERGE command which seems to work with
the following CQL Request:
LOAD CSV WITH HEADERS FROM "file:///test_text.csv" AS line
MERGE (u :word value: line.node1 )
MERGE (h :word value: line.node2 )
MERGE (u)-[t :digram]->(h)
Now I want to achieve, that connections between 2 nodes, which occur
multiple times in my csv file (like value1 to value 2 in the example above)
are represented by an attribute "count" in the corresponding connection.
So the connection between value1 and value2 has a attribute count=2.
I have tried to do that by appending the following line:
ON MERGE SET t.count = t.count + 1 ON CREATE SET t.count = 1
But that throws a syntax error. I am kind of lost at the moment and I am hoping
you guys could help.
Thank you very much.
csv import neo4j
asked Nov 12 '18 at 22:56
marcels93marcels93
162
add a comment |
I am currently trying to import a csv file into neo4j.
Now for example lets see the following file:
node1,node2
value1,value2
value2,value3
value1,value2
Now what I am trying is to import those lines so that
nodes 1 and 2 will be connected, while identical nodes only exist once.
So I guess I will need to do the MERGE command which seems to work with
the following CQL Request:
LOAD CSV WITH HEADERS FROM "file:///test_text.csv" AS line
MERGE (u :word value: line.node1 )
MERGE (h :word value: line.node2 )
MERGE (u)-[t :digram]->(h)
Now I want to achieve, that connections between 2 nodes, which occur
multiple times in my csv file (like value1 to value 2 in the example above)
are represented by an attribute "count" in the corresponding connection.
So the connection between value1 and value2 has a attribute count=2.
I have tried to do that by appending the following line:
ON MERGE SET t.count = t.count + 1 ON CREATE SET t.count = 1
But that throws a syntax error. I am kind of lost at the moment and I am hoping
you guys could help.
Thank you very much.
csv import neo4j
asked Nov 12 '18 at 22:56
marcels93marcels93
162
I am currently trying to import a csv file into neo4j.
Now for example lets see the following file:
node1,node2
value1,value2
value2,value3
value1,value2
Now what I am trying is to import those lines so that
nodes 1 and 2 will be connected, while identical nodes only exist once.
So I guess I will need to do the MERGE command which seems to work with
the following CQL Request:
LOAD CSV WITH HEADERS FROM "file:///test_text.csv" AS line
MERGE (u :word value: line.node1 )
MERGE (h :word value: line.node2 )
MERGE (u)-[t :digram]->(h)
Now I want to achieve, that connections between 2 nodes, which occur
multiple times in my csv file (like value1 to value 2 in the example above)
are represented by an attribute "count" in the corresponding connection.
So the connection between value1 and value2 has a attribute count=2.
I have tried to do that by appending the following line:
ON MERGE SET t.count = t.count + 1 ON CREATE SET t.count = 1
But that throws a syntax error. I am kind of lost at the moment and I am hoping
you guys could help.
Thank you very much.
csv import neo4j
csv import neo4j
asked Nov 12 '18 at 22:56
marcels93marcels93
162
asked Nov 12 '18 at 22:56
marcels93marcels93
162
asked Nov 12 '18 at 22:56
marcels93marcels93
162
asked Nov 12 '18 at 22:56
marcels93marcels93
162
asked Nov 12 '18 at 22:56
marcels93marcels93
162
162
add a comment |
add a comment |
1 Answer
1
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oldest
votes
Just a small error here, it's ON MATCH SET, not ON MERGE SET.
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
Well... im feeling pretty stupid now, but it perfectly worked :D So thank you very much.
– marcels93
Nov 13 '18 at 0:11
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
votes
active
oldest
votes
Just a small error here, it's ON MATCH SET, not ON MERGE SET.
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
Well... im feeling pretty stupid now, but it perfectly worked :D So thank you very much.
– marcels93
Nov 13 '18 at 0:11
add a comment |
Just a small error here, it's ON MATCH SET, not ON MERGE SET.
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
Well... im feeling pretty stupid now, but it perfectly worked :D So thank you very much.
– marcels93
Nov 13 '18 at 0:11
add a comment |
Just a small error here, it's ON MATCH SET, not ON MERGE SET.
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
Just a small error here, it's ON MATCH SET, not ON MERGE SET.
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
answered Nov 13 '18 at 0:04
InverseFalconInverseFalcon
18.8k21829
18.8k21829
Well... im feeling pretty stupid now, but it perfectly worked :D So thank you very much.
– marcels93
Nov 13 '18 at 0:11
add a comment |
Well... im feeling pretty stupid now, but it perfectly worked :D So thank you very much.
– marcels93
Nov 13 '18 at 0:11
Well... im feeling pretty stupid now, but it perfectly worked :D So thank you very much.
– marcels93
Nov 13 '18 at 0:11
Well... im feeling pretty stupid now, but it perfectly worked :D So thank you very much.
– marcels93
Nov 13 '18 at 0:11
add a comment |
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