Neo4j

Ajwah · 12-18-2019

Given a top node A And given that this top node A can have any arbitrary amount of children. For illustration purposes let these children be c1, c2 and c3 Each of these children in turn point to an arbitrary amount of items with a subset of items tha...

Ajwah · 12-13-2019

When I do multiple times: MATCH (entity: Entity{ collection_id: 10 }) MATCH (rule: Rule{ collection_id: 10, id: "strength_greater_than_0", column: "strength", operation: "greater_than", value: "0" }) WHERE entity.strength > 0 CREATE (rule)-[r:APPLIES...

Ajwah · 12-13-2019

I would like to have some guidance on creating a relationship between two existing nodes without introducing new nodes. The canonical way of doing this should be something like: MATCH (entity: Entity{ collection_id: 10 }) MATCH (rule: Rule{ collectio...

Ajwah · 12-15-2019

Apparently you need to use neo4j-admin when importing larger files. Importing through the browser is only suitable for small quantities. 1 million rows is simply not feasible because via the browser it will only use one cpu core to do the import.

Ajwah · 12-13-2019

Thanks for the analogy. That was helpful to think of some use cases for a duplicate relationship. An example would be that instead of introducing new nodes each time some event occurs, one could model the occurrence of that event with a separate rela...

Ajwah · 12-13-2019

dana.canzano: but a user may want to add properties to the relationship itself. This is stating that two relationships of the same type, e.g. APPLIES_TO between two the same nodes could be annotated differently. One could add property status t...

Ajwah · 12-13-2019

An update from my side. After deleting the relationships and repeating the above query: MATCH (entity: Entity{ collection_id: 10 }) MATCH (rule: Rule{ collection_id: 10, id: "strength_greater_than_0", column: "strength", operation: "greater_than", va...

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What is the meaning of duplicate relationship between two nodes?

Create relationship between two existing nodes without introducing new nodes

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