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...
Hello everyone. I have the same problem for some Cypher queries I'm implementing. I think that my approach is wrong, but I'm trying to understand how to solve the problem. I have a problem with those queries with non existent properties or null value...
what are the different types of indexing structures used in Neo4j ?
Hello, I have a Cypher query as follows : MATCH p = (n {t='toto'})-->(n1)-[y]->(n2)-[z]->(n3) RETURN p; This query works fine for "complete" paths but in my case I am no sure if relations x,y,z exists. I would like to ask, if there is a way to have O...
Is it possible to create relationships between table1 with table3 by using table2? for example in: --Table1 we have id and momName --Table2 we have id and table1ID and Table3ID --Table3 we have id and dadName we need to create relationship between mo...
The following two queries differ in performance by about two orders of magnitude: 6 results, time: 0.000422085s MATCH (n)<-[r:SECURITY]-() WHERE ID(n) = 108253 RETURN r 6 results, time: 0.031369832s MATCH (n)<-[r:SECURITY]-(s) WHERE ID(n) = 108253 R...
I am trying to import 2.3 TB of data onto an EC2 Box with 8 Cores 120 GB Ram and a 8 TB SSD. I have been able to load smaller datasets but am now scaling up to a larger dataset. The command to invoke the import is ~/../../../usr/bin/neo4j-admin impor...
Hi all, I searched for some answers both on the board and via google, but I'm not finding exactly what I'm looking for. This has come up for me a bunch of times in the past and I never walk away from even successful queries feeling totally satisfied ...
Neo4j 3.4.5, java 1.8.0_191. Trying to build a transaction event handler using GraphAware's Improved Transaction Event API. Extension works until I try to bring in the above package, after which Neo4j cannot start, with error "module-info has been co...
I started by uploading my database and then I set the weight for all relationships by running this query : match (a:Attributaires)--(h:Attributaires) with a, count(h) as AttributaireCount match (a)-[r]-() set r.weight = AttributaireCount Now I want ...
All what I need is knowing how many times each node collaborated with other nodes , I found this example and I followed it . I runned this query : MATCH (n:Attributaires)-[r:CollaborateWith]->(m:Attributaires) With distinct n.id as Attributaires , si...
We have a requirement to support complex business rules governing attribute-based security. So, for example, a "Car" node might have a "Color" property, which would have a handful of custom security markings on it (i.e. 2-4 sub-attributes), which ne...
Hi Everyone, I have my data in EDL 1.0 and i want to import this data in neo4j . my data is available at publish layer of EDL nad i can access it through impala . i can write query there and fetch the data . could you please tell me what is the best...
If I am not wrong Neo4J do not keep 100% of total data in-memory graph but some portion of it based on what is actively used and required. How much data Neo4J keeps in memory and what decides what data will be kept in Nodes /relationships in memory ...
As memory is getting cheaper day by day, we would be able to keep all data in Memory and access at Random Access speeds without using graph databases. What are pros and cons of Graph DB vs In-Memory NOSQL DB's?
I just got introduced to Graph Database Neo4J and was amazed at its speed, performance, capabilities and above all ease of model development ! "What you design on whiteboard , is what is , your database model" Why development and adoption of graph da...
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