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...
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...
Hi, I am working on a problem, where I have to create a node only when the value exists in the column and create no nodes otherwise for null values. Should I use CREATE or MATCH? My query: LOAD CSV WITH HEADERS FROM "file:///Latest_Matrix.csv" AS lin...
I am trying to download a style grass file from an S3 repository I host: https://prepay-internal-documents.s3.amazonaws.com/prepay.grass When I use :style https://prepay-internal-documents.s3.amazonaws.com/prepay.grass I get this error UndefinedError...
Hi, I have a question for you. If I have a flat table in mysql, which has tens of million of rows, userId, eventId, detection_time, score 1, 1, 2018-01-01 00:01:00, 0.1 1, 1, 2018-01-01 00:05:00, 0.1 1, 2, 2018-01-01 00:01:00, 0.1 1, 3, 2018-01-01 00...
I'm trying to find a way to determine if a node exists . My logic is given an ID, if a node (doc{id}) exists: create (doc{id})-[:RELATED_ID]->(doc{id}) -to itself else if a node (draft{id}) exists: create (doc{id})-[:RELATED_ID]->(draft{id}) ...
I used unionFind algo to divide my graph into clusters . I am getting many clusters but one of them looks weird since it has 10k nodes ( I have 40k nodes in total) !! Anyone has an explanation about that ? I heard also about the "SUPER NODE" but I d...
I need help optimizing the following query. MATCH (p:Program)-[ao:AIRS_ON]->(t:Timeslot) WITH p, min(t.gmtDateTime) as minTs MATCH (p1:Program)-[ao1:AIRS_ON]->(t1:Timeslot) WHERE t1.gmtDateTime = minTs RETURN p1,t1,minTs ORDER BY t1.gmtDateTime LIMI...
Hi, I have what should be a simple query to get a list of children (ideally grandchildren later) nodes from a parent node. I have a document node that is connected to words with a :BOW_OF relationship. The result I'm looking for a row with a document...
The new off-heap transaction state in Neo 3.5 seems like it would speed up write transactions. Are there any known downsides of activating it, or should we always be using it if we can, let's say even though our application is not write-heavy?
Hello Everyone, I am here with a Problem which i am facing when connecting kerberos impala with neo4j. Previously i was getting some error like principle name can not obtain and i am able to solve that problem but now i am getting below error Error ...
Hey Everyone, i need some help in importing the data from impala to neo4j . i have credentials of impala and i want my data in neo4j i am using below impala jdbc driver ImpalaJDBC:2-5-45 let's suppose i have the data for connection string as below im...
2018-11-28T08:44:54.901012+01:00 markus neo4j[2721]: 2018-11-28 07:44:54.900+0000 ERROR Failed to start Neo4j: Starting Neo4j failed: Component 'org.neo4j.server.database.LifecycleManagingDatabase@3b96c42e' was successfully initialized, but failed to...
How can I get the activation code for ETL?thank you!
I'm reading about virtual nodes and relationships. I'm not sure what the use case for them would be? Can someone tell me more about them and where they would be used?
We currently use Neo4j community edition version 3.3.1. I wanted to know if there are any log files that displays when a user logs in/out of neo4j on the neo4j server? I know where the log files are location however, all I see are the following da...
All, I have a set of nodes and some basic edges already defined. I now wish to add a series of edges that represent a traversal (for an arbitrary purpose) through these nodes. The traversal must support an ordering of node visits. As an abstract exam...
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