Neo4j

sethia_arun · 11-04-2020

Hi, I am trying to run following cypher via Neo4j browser CREATE CONSTRAINT test_id IF NOT EXISTS ON (n:Test) ASSERT n.id IS UNIQUE it is giving following error Invalid input 'I': expected whitespace, comment or ON (line 1, column 27 (offset: 26)) "C...

sethia_arun · 10-01-2020

Hi, I have data in following format Account Employee# Service Provider ABC X1 M1 ABC X2 XYZ X1 XYZ X2 M1 XYZ X3 I could able to come out with following attached model....

User-defined procedures from GraphQL · 09-29-2020

Hi, I have defined a User-defined procedures (similar to https://neo4j.com/docs/java-reference/current/extending-neo4j/procedures-and-functions/procedures/) and it returns object with String and Int with multiple rows. I am able to execute the same f...

sethia_arun · 09-29-2020

Hi, I am using neo4j-community-4.0.4 with apoc-4.0.0.18-all plugin. When I am trying to register a custom procedure CALL apoc.custom.asProcedure('answer','RETURN 42 as answer') the system is throwing following error: Failed to invoke procedure apoc.c...

sethia_arun · 12-10-2021

If relationship may or may not exist then you can try this OPTIONAL MATCH (a)-[r:old_type_of_rel]->(b) DELETE r CREATE (a)-[:new_type_of_rel]->(b)

sethia_arun · 11-04-2020

Thanks, yes I am using community edition.

sethia_arun · 10-05-2020

create nodes MERGE (s:Student {studentId: "1",name:"1"}) MERGE (math:Subject:Math {marks: 20}) MERGE (eng:Subject:English {marks: 20}) MERGE (physics:Subject:Physics {marks: 20}) MERGE (s)-[:HAS_SUBJECT]->(math) MERGE (s)-[:HAS_SUBJECT]->(eng) MERGE ...

sethia_arun · 10-05-2020

Thanks. I think only way we can avoid such star relationship problem by using additional property part of relationship like you used part of "PROVIDER" relationship.

sethia_arun · 10-02-2020

Thanks @Joel Because of some reason, I can't disclose the business process here; the one I depicted here is not the real one, but a similar concept we have in our current business process (entity names are different). The data that I shared in relati...

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Create constraint if not exists

Model entity involved multiple relationship

User-defined procedures from GraphQL

apoc.custom.asProcedure

Re: Delete a realtionship if exists and create new one

Re: Create constraint if not exists

Re: Need to create a trigger to Sum the node property

Re: Model entity involved multiple relationship

Re: Model entity involved multiple relationship