Graph Database

A graph database structures information as a graph or network, where a set of resources, or nodes, are connected together by edges that describe the relationships between each resource. Graph databases are a type of NoSQL database and represent Linked Data (LD) as nodes, edges, and properties.

Graph Database	Triplestore
Accommodates a variety of query languages such as Cypher	Uses SPARQL as the query language
Stores various types of graphs	Stores rows of triples
Node/property-centric	Edge-centric
Does not provide inferences on data	Provides inferences on data
Less academic	More synonymous with the “semantic web”

Examples

• ArangoDB
• Amazon (Web Services) Neptune
• JanusGraph
• Neo4j
• OrientDB

Further Resources

• Graph Database (Wikipedia)
• Neo4j (2022) “Introduction to Graph Databases Video Series”
• Robinson, Webber, Eifrem (2013) Graph Databases