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Questions tagged [amazon-neptune]

For questions related to Amazon Neptune, a graph database service which supports both Property Graph and RDF graph models, as well as their respective query languages Apache TinkerPop Gremlin, openCypher and SPARQL.

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930 questions
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Update a vertex and a all its child vertexes and edges

I have JSON entities like this one that I insert in the graph as edges and vertexes, as you can see, each entities are already in an highly relational format. person = { "summary": "Unix System Administrator at National Bank of Canada", …
Jasmin Parent
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Add Additional Property to Neptune DB

I am trying to add additional property called "insert_date" to the existing vertices and edges. I tried g.V().setProperty('insert_date',datetime('2020-10-06')) Error: { "requestId": "33cf8df5-3cbe-41ac-b650-5752debec04d", "code":…
Raju
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How to do a combined boolean operation in neptune using gremlin and python?

I am trying to do a query where I have multiple boolean operations to be done but can't figure out how to do it. The query is something like (A and B) or (C and D) I first tried g.V()\ .has("attra", P.lte(20))\ .has("attrb",…
Prasanna
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SPARQL SubQuery in Filter

SELECT ?Name FROM WHERE { ?Aut name ?Name . ?Pub author ?Aut . ?Pub conf ?Conf FILTER (?Conf IN ( SELECT ?ConfX FROM WHERE { ?ConfX series "ISWC" }))} I have taken the query from…
harish chava
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Build AWS authorization header of http REST API requests for Neptune

I need to call Neptune REST endpoint for a query with http. How can I build http request authorization with aws access key, secret id, region WITHOUT SDK?
Raushan-cs
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Traversing a subset of Graph for complex queries

I'm fairly new to Gremlin and I'm trying to make a query more efficient. With a graph that looks something like this: [vertex: label=a] -> [vertex: label=b] -> [vertex: label=c] -> [vertex: label=d] I need to traverse the graph, and get the results…
TKems
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How do I multiply a vertex property with an edge weight from an edge pointing to it?

I am stuck on a graph traversal problem I seem to be having. I use gremlinpython and my DB is stored in AWS Neptune. The graph looks similar to this example: g = TinkerGraph.open().traversal() o1 = g.addV('o').property('order','order1').next() r1 =…
Morinaga
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Create Vertex only if "from" and "to" vertex exists

I want to create 1000+ Edges in a single query. Currently, I am using the AWS Neptune database and gremlin.net for creating it. The issue I am facing is related to the speed. It took huge time because of HTTP requests. So I am planning to combine…
Kishan Gajjar
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Load data in to Amazon Neptune DB

I have used the below code to load the data in to neptune db access. curl -X POST \ -H 'Content-Type: application/json' \ https://your-neptune-endpoint:port/loader -d ' { "source" : "s3://bucket-name/object-key-name", …
JhansiRani Kolapalli
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Query to retrieve all paths traversable from a given vertex

I am trying to write a query that retrieves all paths that are reachable from a specified vertex. In other words I am trying to retrieve the entire cluster/sub-graph that the vertex is connected to. A couple more constraints on the query…
KOB
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How to select multiple ids with Gremlin?

In the console, this returns two vertices: g.V('615e6de7-3172-458b-bc68-876fd4f5ecb0','059b6de4-a463-4789-a987-7c2833950b5c') ==>v[615e6de7-3172-458b-bc68-876fd4f5ecb0] ==>v[059b6de4-a463-4789-a987-7c2833950b5c] But when I run it in Gremlin, I get…
Fook
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Can you store any object in a Vertex's property?

Could I store a Tuple or a Map as the value of a vertex's property in Neptune/gremlin? I'm unsure where the relevant docs are. I can't find it in the AWS docs or in the Vertex Javadocs
simpleCoder
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AWS Neptune path() truncates if used after a repeat() loop

g.addV('person').property('firstName','Bob').as('bob'). addV('decision').property('decision','REFER').as('brefer').select('bob').addE('hasDecision').to('brefer'). addV('phone').property('number','123').as('phone').select('bob').addE('hasPhone').to('p…
Phil Exell
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Estimating Graph Db Size on AWS Neptune

If I am building a graph on AWS Neptune with 20 million Nodes and 100 million edges, How much RAM and Disk space would I require? Can someone give me an rough order of magnitude estimate
Kay
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Using Gremlin (AWS Neptune), how can I get all paths of length n from a starting node traversing edges with specific criteria?

Starting with node 1, I want to return all the paths (edges and vertices, with id/label/properties) within n hops following any outbound edges, or following inbound edges with a property predicate (p > 50). Ideally the paths shouldn't contain any…
Anthony
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