Questions tagged [graph-databases]
The graph-databases tag has no usage guidance.
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Should I store large amounts of data in the properties of a node in a graph database?
I'm building a reddit clone on top of software that must incorporate a legacy neo4j graph database to track user actions. I also want to use it to store the comment/post data. Assuming this new app is ...
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Designing a graph database structure for an application with a large amount of connections
I'm looking for advice on how to design the data model for a project I'm working on. I'm not really sure where to ask such a question. I've been using StackOverflow for years, but this problem is a ...
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Is graph database suitable for accounting like software?
The problem:
We have a business process where we need to record many transactions between parties.
At the same time, the products&services that transactions are for can fall into many categories ...
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135
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How do you shard a graph database or graph data?
Imagine I have graph data that is beyond the size of a single machine.
How would you shard a graph database?
I asked on Hacker News and people suggested sharding based on a hash of the predicate-...
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How to model a ternary relationship in a graph-based paradigm?
Consider a context where we have Users saving Questions and adding personal Tags to them.
In a graph-based paradigm, a first approach could be something like:
(User)-[SAVES {tags}]->(Question)
...
- 71
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128
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Solution design leveraging Graph and Relational database types
Is it viable to leverage both a graph db and a relational db at the same time for the same data sets? Does it even make sense to approach the solution this way?
Thinking is i use nodes and ...
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How does a database update trigger a notification to application layer?
Application component 1(ap1) record/insert/update a new state in graph database(neo4j)
For every new state change in the database, application component 2(ap2) needs to be informed/notified that a new ...
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Neo4j graph performance: should I cache slow queries in a separate database?
Setup/Intro
I have 10k+ nodes in my Neo4j graph in which I need to display a sub-graph (100-500 nodes) between 2 start/end nodes on the frontend app along with info about the critical path and all ...
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Tracking Graph edges changes history
i have a graph and transactions which change the relationship between the graph nodes and i need to keep tracking of this changes over time. Kinde of queries i need to execute:
I want to see the ...
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Queries as a service for other applications (neo4j)
I am new to neo4j and the graph I'm shaping will be used by third party applications for some fixed (cypher) queries - we can think about the classical "Who is friend of Alice?" question.
I'd like ...
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Data modeling user-object permissions, between claims and metadata
I've been thinking about how to map user claims to permissions in a way that scales from a read and write perspective, probably using a stand-alone service. What we have today doesn't scale for ...
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1k
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How to properly use a database containing common tables in a multi-application system?
I'm trying to determine the best application and database architecture for a project I am working on.
The idea is that there will be multiple, separate applications that will all share a few tables ...
- 209
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463
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In a graph database, how do I know whether to use a node, node property or relationship property?
For example, given node types User and Post, and expressing that a user posted something on Twitter, what factors would I need to consider in deciding between:
(u:User)-[posted]->(p:Post {platform:...
- 630
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Is there something "dirty" about using a non-linear store in Event Sourcing?
I just stumbled upon an article by Lucas Majerowicz titled "Add git-like functionality to your application using Event Sourcing".
In it, he describes using Event Sourcing with events stored ...
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In what way is an XML database different from (is not specialization of) a graph database?
XML is labelled tree, a special case of graphs. So, why there are separate XML databases and why is it that XML is not stored in graph databases? At a first glance it seems so easy - one should map ...
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graph database - how to avoid that the edge becomes a vertex
In my current project I have a situation where I would need to use an edge collection as vertex collection. I would like to find a way to avoid it. This is the (reduced) scenario.
These are the ...
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Graph Database, Storing Transactions
I'm working on getting a handle on Graph Databases (using Neo4j) and am trying to wrap my head around where "the line" is between what makes a good fit for GraphDBs and what should be strictly RDBMSs.
...
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How to design the datamodel of nested categories connected to a note?
I am building a personal app to store my notes in. It is not a new concept, of course, but it is giving me a great project to learn Node.JS together with trying out a graph database: Neo4j.
What I am ...
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How Graph DB stores the data?
Recently read couple of Graph DB tutorials. Most of them tell what is Graph DB/when to use/fetch syntax but no where found high level description
how GraphDB stores the data internally to understand ...
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How can I represent my graph schema in a REST interface?
Abstract
I'm working on a REST interface to a graph database (Titan/Gremlin-Server, but this shouldn't matter) that has a strong sense of type for vertices and edges. I'd like to design a REST API ...
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382
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Searching, storing, and finding graph attributes and vertices
I've been reading the 3rd edition of [Algorithms][1] by Cormen, Leiserson, Rivest and Stein. For DFS and BFS their algorithm loops through all the vertices first and colors them white.
1) If the ...
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Might this be a good candidate for a graph database? [closed]
We need to create an application that must diff relationships between entities.
As an example, let's say we're creating an application to model instances of a disease amongst pets, and we ...
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Graph database keeping historical relationships
I'm starting the modeling of the following problem:
I have many clients (millions) that interact in a network forming a graph. At the highest granularity of my business problem, each realationship ...
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3
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Relational vs Graph Database for (initially) moderately-sized network
We're developing an application whose data domain (or at least 90% of it) can be modeled effectively using a relational database. We've been using PostgreSQL since the beginning and have had no ...
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Algorithm to generate Edges and Vertexes outwards from origin with max multiplicity of 3
I am creating a 2d game for a website where the universe can grow extremely large (basically infinitely large). Initially, the universe is composed of 6 stars that are an equal distance from the ...
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134
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What business value does a semantic platform offer that a graph database doesn't [closed]
We hear a lot about graph databases such as Neo4J and a little less about semantic platforms such as OWLIM and similar triple (or quad) stores.
I understand the latter is associated with embedded OWL ...
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641
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How can I model this scenario in a graph database?
I'm developing an application where users can tag resources and it's also important to know who tagged the resource with a specific tag.
A graph database seems like a good fit for this and the rest ...
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Why would I use ElasticSearch if I already use a graph database?
I don't find any deep explanation on the web about a comparison between ElasticSearch and the graph databases.
Both are optimized to traverse data.
ElasticSearch seems to be optimized for analytics.
...
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Which approach would be better for persisting these overridable configuration keys and values? A simple key-value store, or a graph database?
I'm creating a system where there are config keys and values. So for example:
config.key = 10
Is an example of a configuration key and a value. These keys can also have overrides based on "...
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Designing a social network with CQRS, graph databases and relational databases in mind
I have done quite an amount of research on the topic so far, but i couldn't come up with a conclusion to make up my mind.
I am designing a social network and during my research i stumbled upon graph ...
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403
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How does I/O work for large graph databases?
I should preface this by saying that I'm mostly a front end web developer, trained as a musician, but over the past few years I've been getting more and more into computer science.
So one idea I have ...
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How to link the data of MongoDB and Neo4j?
I want to implement a system which store the profiles of employee and the resources that they have. There are many types of resources, such as the documents they produced, the techniques they have......
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Would a model like this translate well to a document or graph database?
I'm trying to understand what types of models that I have traditionally persisted relationally would translate well to some kind of NoSQL database. Suppose I have a model with the following ...
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Nested Entities and calculation on leaf entity property - SQL or NoSQL approach
I am working on a hobby project called Menu/Recipe Management.
This is how my entities and their relations look like.
A Nutrient has properties Code and Value
An Ingredient has a collection of ...
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Under which area of Artificial Intelligence is my knowledge store?
I've a maturing idea regarding a knowledge store.
For the purposes of this question, the store would be used by a police force for the recording and querying of crimes. I believe that historically,...
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Architecture for Social Graph data that has a Time Frame Associated?
I am adding some "social" type features to an existing application. There are a limited # of node & edge types. Overall the data itself is relatively small (50,000 - 70,000 for each type of node)...
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When should you use a document vs relational vs graph database? [closed]
For the purposes of discussion let's consider a FourSquare scenario.
Scenario
Entities:
Users
Places
Relationships:
Checkins: users <-> places, many to many
Friends: users <-> users, many ...
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What are graph datastores better at doing than other datastores and why?
Where previously there was only relational databases, the data store world is now rife with options like Key-Value, Document, and Graph datastores. Unfortunately, every datastore likes to show how it ...
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Tool for large scale graph analysis
What are the best tools / frameworks / libraries available to implement and run algorithms on graphs?
In particular I need a tool that can load a set of nodes, edges and values assigned to these ...
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Is OrientDB document-database? or graph-database?
Some document says OrientDB is document-database, some others talks it's graph-database. What's right?
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