Ontop vs OrientDB

Ontop is a rdf database; OrientDB is a multiple database. Ontop (2009, Apache-2.0, Java) ranks #18 this month; OrientDB (2010, Apache-2.0, Java) ranks #12.

Attribute Ontop #18 ▲2 Strong OrientDB #12 ▼5 Strong
At a glance
Rank #18#12
Score 57.062.0
GitHub stars 1k5k
Popularity 58.482.9
Activity 49.460.7
Community 65.635.4
Research 54.867.6
Fundamentals
Description A Virtual Knowledge Graph system that exposes relational databases as RDF knowledge graphs, translating SPARQL queries into SQL without moving data. Uses R2RML mappings and lightweight ontologies.A distributed multi-model database combining graph and document models with TinkerPop support. Features sharding for horizontal scaling and ACID transactions.
Vendor OntopicOrientDB Community
Model RDFMultiple
Kind query-enginedatabase
Category EstablishedEnterprise
First released 20092010
Status activeactive
License Apache-2.0Apache-2.0
Written in JavaJava
Query languages SPARQLSQL, Gremlin
gdotv support nono

Feature scores — not surveyed for Ontop

Feature OntopOrientDB
Community & Business
Active development —✓
Commercial support —✓
Live community —0.5
Open Source —✓
Pricing —·
Trendiness —0.25
Deployment
Containerization —✓
Work as dedicated instance —✓
Work as embedded —✓
Testing in-memory version —✓
Platform
Operating on Linux —✓
Operating on Windows —✓
SaaS offering —·
Operations
Automatic updates —·
Client side caching —·
Data versioning support —·
Live backups —✓
Distribution
Cluster Re-balancing —·
Data Distribution —✓
High-Availability —✓
Query Distribution —0.5
Replication support —✓
Developer Experience
Data types defined —✓
Logging/Auditing —✓
Object-Graph Mapper —·
Reactive programming —·
Documentation up-to-date —0.5
Binary protocol —✓
CLI —✓
GUI —✓
Data Model
Multi-database —✓
Graph-native data —·
REST API —✓
Query Language —✓
Transactions
Granular locking —·
Multiple isolation levels —✓
Read committed transaction —✓
Transaction support —✓
Schema & Security
Constraints —·
Schema support —✓
Secondary indexes —✓
Server side procedures —✓
Triggers —✓
Authentication —✓
Authorization —✓
Data encryption —✓