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Head's Up! Site migration is underway. Phase 1: replicate users.

Forum Posts

Beta Opportunity for Neo4j Workspace

Introducing Neo4j Workspace We’re inviting you to check out Neo4j Workspace. Workspace combines our most powerful graph tools (Data Importer, Bloom, and Browser) all in one place to help you get up and running with graph databases faster. For experie...

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TrevorS by Community Team
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About the Neo4j Graph Platform Category

The Neo4j Graph Platform includes the core database and all the technologies surrounding the database, making it useful and accessible for a lot of different users. When asking a question, please select a descriptive label that best matches your quer...

yolande by Community Team
  • 1 replies
  • 1 kudos

Resolved! Create ranks (limit) over subgroups in Neo4j

Hello: I have the following query to retrieve the top 2 papers (in terms of the number of citations) of every proceeding for researchers: MATCH (p:Paper)-[:SUBMITTED_TO]->(a:Proceeding),(p)-[:CITED_BY]->() WITH p.paperTitle as Paper, size((p)-[:CITED...

How to Aggregate calculation of data faster?

I have a problem,Aggregate calculation is slowly, any Suggest? thanks. Query: match(m:MaBatch)-[r:BATCH]->(d:SumModPanelDefHis) where m.batch='4th' and d.eventTimekey>='20181108060000' and d.eventTimekey<='20181110060000' with d,count(d.panelId) as I...

gflp123 by Node
  • 3 replies
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Help using apoc.coll.max

Using Neo4J 3.5.3, and latest APOC. Trying to return the "latest" date among 3 date properties (in epoch ms format). I collect the properties into a collection variable, and then attempt apoc.coll.max as shown here: MATCH (d:Mwpdevice)--(:Mwpactive...

pdrangeid by Graph Voyager
  • 1 replies
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Privileges on subgraphs

Is there a practical example of assigning a role with privileges to create nodes but may not use labels from a specified blacklist? The operational guide is a bit abstract.

APOC importing /retrieve JSON data from CURL

Problem description: I want to use apoc.load.json , however in a certain manner, namely instead of url or the file path use variable as argument. The reason for this is that I am sending my json as part of CURL, so I can capture it and save to varia...

Neo4J CE stability issues

Ubuntu 18.04Neo4j: 3.5.3, Browser 3.2.16Python driverAlgo's pluginDue to numerous " Discarded stale query from the query cache after n seconds" the logs are littered with personal data So I've been trying to start using Neo4J in a project, but have s...

Creating nodes from a COLLECT

Reading a "Learning Neo4j" book from Packt publications. Found a query: match (p:Person)-[b:BOUGHT]->(prod1:Product)-[:MADE_BY]->(br:Brand)<- [MADE_BY]-(prod2:Product) with p, br, prod2, count(prod1) as NrOfBrandProducts where not(p-[:BOUGHT]->prod2)...

vsaran by Neo4j
  • 2 replies
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How to Automate Neo4j Deploys on AWS

Hi everybody - after some requests I put together an article with some simple shell scripts that you can use to create Neo4j deployments of enterprise, community, and causal cluster on AWS. If you have any questions or feedback to share, this thread ...

Heap size recomandation for Read only System

Hi, I have 100GB size database . What is the default heap size for 61GB RAM ? (The cache size is 50% but nothing written on the heap) What is the recommanded value for Read-Only , few user with long queries ? In case I only load data once, and have f...

Help Matching Where Patterns Intersect

I have a graph with events on a timeline and participants in events. I want to do some queries for statistics about how regularly participants attend, given that the events are irregularly spaced along the timeline. Simplified: (:Person)-[:ATTENDS]-...

Creating virtual elements from output of apoc.path.expand

I want to create a virtual relationship from the output of apoc.path.expand. I assumed I could feed in the output to the second part of the query using WITH, but don't know if/how to access graph elements as apoc.path.expand only yields a path? (apol...

mike by Graph Buddy
  • 7 replies
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