neo4j

问题 I know this question is asked by many people already for my research, here's some questions asked before How to delete all relationships in neo4j graph? https://groups.google.com/forum/#!topic/neo4j/lgIaESPgUgE But after all, still can't solve our problems, we just want to delete "ALL" nodes and "ALL" relationships suppose delete "ALL" can see there are left 0 nodes 0 properties and 0 relationships This is the screenshot i took after executing the delete "ALL" suggested by forum My question

问题 I know this question is asked by many people already for my research, here's some questions asked before How to delete all relationships in neo4j graph? https://groups.google.com/forum/#!topic/neo4j/lgIaESPgUgE But after all, still can't solve our problems, we just want to delete "ALL" nodes and "ALL" relationships suppose delete "ALL" can see there are left 0 nodes 0 properties and 0 relationships This is the screenshot i took after executing the delete "ALL" suggested by forum My question

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I was trying to save directed graphs into databases for further processing and query. And neo4j seems to fit my needs. However, I don

问题 I have some specific requirements for my project and I decided to implement unmanaged Neo4j extension. I found this information in Neo4j docs: Unmanaged extensions Testing your extension This looks like a good start. But I can't get things working for me. Is there some more complete working example/template, that can be used as reference? 回答1: "Handmade" solution TL;DR; - https://github.com/FylmTM/neo4j-unmanaged-extension-template This is working example of Neo4j unmanaged extension, that

问题 I am learning Spring MVC. I want to extend the Neo4jConfiguration class but it is not available. I imported the following dependency: <dependency> <groupId>org.springframework.data</groupId> <artifactId>spring-data-neo4j</artifactId> <version>4.2.4.RELEASE</version> </dependency> and after that I have reimported the libraries from maven. As I know I should now be able to extend the Neo4jConfiguration class. What is the problem? Thank you! 回答1: Neo4jConfiguration has been dropped from Spring

问题 I'm pretty new to coding so forgive me if my code is unreadable or my question simplistic. I am trying to create a little server application that (amongst other things) displays the properties of a neo4j node. I am using node.js, Express and Aseem Kishore's Node-Neo4j REST API client, the documentation for which can be found here. My question stems from my inability to fetch the properties of nodes and paths. I can return a node or path, but they seem to be full of objects with which I cannot

问题 I have two related problems I need help with. Problem 1: How do I model a conditional relationship? I want my data to indicate that when test CLT1's "Result" property = "High", CLT1 has relationship to Disease A. If I take a node-centric approach, I imagine that the code might look something like... (CLT 1 {Result: "High"}) -[:INDICATES] -> (Disease A) Further, when CLT1's "Result" property = "Low", CLT1 has a relationship to Disease B (CLT 1 {Result: "Low"}) -[:INDICATES] -> (Disease B)

问题 When I run a query such as match (n) return n all of the nodes are returned, however, the relationships and how the nodes are connected does not appear to be in the response data. However, the graph manages to draw the full data model with relationships. What is the browser doing to gather together this information, or am I missing how this can be obtained from the response data? I have been using neomodel to query the data, however the inflate method walks the structure and returns too

问题 My single machine available resource is : Total machine memory: 2.00 TB Free machine memory: 1.81 TB Max heap memory : 910.50 MB Processors: 192 Configured max memory: 1.63 TB My file1.csv file size is 600GB Number of entries in my csv file = 3 000 000 000 Header structure attempt1 item_col1:ID(label),item_col2,item_col3:IGNORE,item_col4:IGNORE,item_col5,item_col6,item_col7,item_col8:IGNORE Attempt2 item_col1:ID,item_col2,item_col3:IGNORE,item_col4:IGNORE,item_col5,item_col6,item_col7,item

问题 What I'm doing is to get all profiles * who has a specific directed relation to a users profile * and if those have an alternate profile * get those in case the users alternate profile * has a relation to it. I also need the direction of the relations. My problem is, with about 10000 nodes it takes about 5 seconds to get data. I have auto index on nodes and relationships. This is how my nodes are related: User-[:profile]->ProfileA-[:related]->ProfileB<-[?:me]->ProfileB2<-[?:related]-ProfileA2