Neo4j

assia_elafouani · 05-03-2020

Hello, Any idea why my variable pID become empty after when calling UNWIND rbs AS rb in this query: Match p=(Do:Departure)<-[:BOARD_AT]-(O:Origin)-[OD]->(D:Destination)-[:BOARD_AT]->(DD:Departure), (Dp:Departure) Where Dp<>Do and Dp<>DD WITH 60 as K...

assia_elafouani · 04-29-2020

Hello everyone, Neo4j : 3.5.12 I'm looking to contract relationships of shortestpaths regarding some constraints. But, I can not find how to do it. I have a graph with two labels (Airport and Station) and distance as a property of my relationships. ...

assia_elafouani · 07-08-2019

Hi everyone, I have a question about how it works a traversal operation in a cypher query. The search starts by finding the start point. After that, the relationships are traversed. This traverse is it done in parallel or sequently? Thank you

assia_elafouani · 05-10-2020

As you said, I think because of null value. I fixed it the problem by grouping paths using collect Thank you

assia_elafouani · 04-30-2020

Finally, I fix the problem using this query: Match p=(a:Airport{id:'a'})-[:LINKS*]->(d) where d:Airport or d:Station with a, d,p, reduce(sum=0, x IN Nodes(p)[1..-1] |case when x: Airport then sum + 1 else sum end) as reductionW return a, d,p, reduc...

assia_elafouani · 04-30-2020

@intouch.vivek thank you for your reply. I edited my post with an example that I created in neo4j. I tried to use REDUCE function with CASE WHEN but I did not get the cumulative weight, I got the total. I hope that my post is clear now.

assia_elafouani · 09-28-2019

thank you. Exactly, you answered me in Slack. Many thanks

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