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DBMS > ObjectBox vs. RDFox vs. Realm vs. TerminusDB

System Properties Comparison ObjectBox vs. RDFox vs. Realm vs. TerminusDB

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Editorial information provided by DB-Engines
NameObjectBox  Xexclude from comparisonRDFox  Xexclude from comparisonRealm  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparison
DescriptionExtremely fast embedded database for small devices, IoT and MobileHigh performance knowledge graph and semantic reasoning engineA DBMS built for use on mobile devices that’s a fast, easy to use alternative to SQLite and Core DataScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationships
Primary database modelObject oriented DBMSGraph DBMS
RDF store
Document storeGraph DBMS
Secondary database modelsTime Series DBMSRelational DBMSDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.29
Rank#166  Overall
#5  Object oriented DBMS
Score0.29
Rank#300  Overall
#24  Graph DBMS
#13  RDF stores
Score7.41
Rank#52  Overall
#8  Document stores
Score0.23
Rank#316  Overall
#27  Graph DBMS
Websiteobjectbox.iowww.oxfordsemantic.techrealm.ioterminusdb.com
Technical documentationdocs.objectbox.iodocs.oxfordsemantic.techrealm.io/­docsterminusdb.github.io/­terminusdb/­#
DeveloperObjectBox LimitedOxford Semantic TechnologiesRealm, acquired by MongoDB in May 2019DataChemist Ltd.
Initial release2017201720142018
Current release6.0, Septermber 202211.0.0, January 2023
License infoCommercial or Open SourceOpen Source infoApache License 2.0commercialOpen SourceOpen Source infoGPL V3
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC and C++C++Prolog, Rust
Server operating systemsAndroid
iOS
Linux
macOS
Windows
Linux
macOS
Windows
Android
Backend: server-less
iOS
Windows
Linux
Data schemeyesyes infoRDF schemasyesyes
Typing infopredefined data types such as float or dateyesyesyesyes
XML support infoSome form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.nonono
Secondary indexesyesyes
SQL infoSupport of SQLnononoSQL-like query language (WOQL)
APIs and other access methodsProprietary native APIRESTful HTTP API
SPARQL 1.1
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
Supported programming languagesC
C++
Dart
Go
Java
JavaScript infoplanned (as of Jan 2019)
Kotlin
Python infoplanned (as of Jan 2019)
Swift
C
Java
.Net
Java infowith Android only
Objective-C
React Native
Swift
JavaScript
Python
Server-side scripts infoStored proceduresnono inforuns within the applications so server-side scripts are unnecessaryyes
Triggersnoyes infoChange Listenersyes
Partitioning methods infoMethods for storing different data on different nodesnonenoneGraph Partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesonline/offline synchronization between client and serverreplication via a shared file systemnoneJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate Consistency
Foreign keys infoReferential integrityyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyesyesyes infoin-memory journaling
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyes infoIn-Memory realm
User concepts infoAccess controlyesRoles, resources, and access typesyesRole-based access control
More information provided by the system vendor
ObjectBoxRDFoxRealmTerminusDB infoformer name was DataChemist
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