Neo4j

julian_n_de_jon · 11-11-2020

Hi all, I've got a query that finds some paths through a Marking relationship, where the "Marking" relationship contains a property "dt_val" (datetime). What I would like to do, is for each path, get the largest "dt_val" value in that path. I thought...

julian_n_de_jon · 10-20-2020

Hi all, Using Neo4j 4.1.0, I was wondering if it's possible to detect patterns where transactions are being split up and then merged together. The following example is a trail of payments between users, where user 1 is paying user 6 $500. Here, User...

julian_n_de_jon · 10-14-2020

Hi there, I've got a database with 18k nodes and 200m relationships. I've used one of the node's properties ("User_ID") as the ID, and I've created a unique constraint on this property. When I run a query to get 2 random nodes by their User IDs, the ...

julian_n_de_jon · 09-03-2020

Hi all, I've got a Neo4j database (v4.1.0) which is being hosted on a server. I'm attempting to connect to it using a HTTPS connection, and have created a SSL Certificate Authority. I've made the following changes to the config file: dbms.default_lis...

julian_n_de_jon · 11-12-2020

Thanks Andrew, that's done the trick. My neo installation is on an offline machine, and the match query is quite large (and irrelevant in this case) so didn't include the bulk of it. Much appreciated!

julian_n_de_jon · 11-12-2020

Correct, thanks. Have updated

julian_n_de_jon · 10-30-2020

For anyone else who's got this issue, I would do a replace (or regex replace) statement that changes all instances of " to ' right at the start, so that you've got consistency. Nick

julian_n_de_jon · 10-30-2020

Hi, I believe you need to convert the string into a recognised Json-object. Also, you use a comma to separate the json object's properties, as well as separating the Json objects. The following code worked for me, if you have the APOC library activat...

julian_n_de_jon · 10-28-2020

Hi Andrew, Thank you for your reply, that's very helpful! Quick question - is the "not exists" statement meant for performance, so it rules out fragments of a payment chain (i.e. only targeting full length chains, rather than several snippets)? I'm u...

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Aggregate functions for paths

Cypher Query for Forking and Merging Path Patterns

Querying relationships slow performance

HTTPS connection to Neo4j database on remote server

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