Database Administrators Stack Exchange
Database Administrators Stack Exchange

Questions tagged [neo4j]

Neo4j is a graph database, reliable and fast for managing and querying highly connected data.

Neo4j is an open-source graph database supported by Neo Technology.

Neo4j stores data in nodes connected by directed, typed relationships with properties on both, also known as a Property Graph.

Main features

  • intuitive, using a graph model for data representation

  • reliable, with full ACID transactions

  • durable and fast, using a custom disk-based, native storage engine

  • massively scalable, up to several billion nodes/relationships/properties

  • highly-available, when distributed across multiple machines

  • expressive, with a powerful, human readable graph query language

  • fast, with a powerful traversal framework for high-speed graph queries embeddable, with a few small jars

  • simple, accessible by a convenient REST interface or an object-

39 questions
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Best free graph database for order of 500 million nodes

I am using neo4j community server edition. It takes 1 minute to find nodes connected across 3 layers. Are there other free graph databases which can perform this type of query faster. The dataset is smaller than RAM of the PC.
Rohit Raj
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new Neo4j install: "No authorization header supplied" even after editing config file

I just installed Neo4j today to play around on my Ubuntu EC2 instance, and I'm having two problems. First, the ubuntu install did not create a neo4j command so I'm not able to issue commands from the cli. Second, when I try this sample command to…
Fawn
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neo4j breadcrumbs query

I want to write a query to receive all parents till root node from any child node, ordered: Here is the graph: I found some solutions, but result have some duplications or nodes weren't ordered. Thanks in advance.
Darii Petru
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in Neo4j my Cypher query pulls data from most recently loaded object, not the one specified

I believe this code demonstrates a bug in this software. But given my lack of experience with Neo4j, maybe something is coded incorrectly. I would like to know if the unexpected output is due to a bug. Given 2 tiny .csv files, I load these data and…
drum1440
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neo4j taking 12 hours to load

I'm loading the panama papers into neo4j using this tutorial,and the last step, loading the edges, has been running for 12 hours. This is the import statement. USING PERIODIC COMMIT LOAD CSV WITH HEADERS FROM 'file:/path/all_edges.csv' AS…
user3238414
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layout neo4j graph based on points

I have a neo4j database with some data stored in Points (e.g. coordinates: point({srid:4326, x:-4.224099535439225, y:52.10621881941465})). I want the neo4j browser to honour these points when laying out the graph visually. Is there a way to interact…
simonalexander2005
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Neo4j Temporal Query with NaT

I am trying to do a temporal query similar to below: MATCH (n:Event) WHERE datetime(n.date) = datetime("2019-01-01") RETURN n But some NaT values have snuck into my n.date property. Is there any way to still do this query without having to update…
Matt Camp
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Create phone call with Mockaroo for Neo4j

I'm following this guide to create a dataset with a call log. But i don't understand the datatype used for the Date fields and the condition for Start_Date, End_Date and Duration to have coerent values (for example date_start = 10/10/10:1050…
Christian Sicari
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neo4J - sandbox doesn't work?

I've been fooling with neo4j: however, it appears the sandbox feature is just completely broken? simply click here https://auth.neo4j.com/index-sandbox-v2.html# or perhaps https://auth.neo4j.com/index-sandbox.html# create an act with your email (or…
Fattie
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