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DBMS > ObjectBox vs. SpaceTime vs. TerminusDB vs. VelocityDB

System Properties Comparison ObjectBox vs. SpaceTime vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameObjectBox  Xexclude from comparisonSpaceTime  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionLightweight, fast on-device database for IoT, Mobile and Embedded devices, persisting and synchronising objects and vectorsSpaceTime is a spatio-temporal DBMS with a focus on performance.Scalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelObject oriented DBMS
Vector DBMS
Spatial DBMSGraph DBMSGraph DBMS
Object oriented 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
#7  Vector DBMS
Score0.03
Rank#392  Overall
#8  Spatial DBMS
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#16  Object oriented DBMS
Websitegithub.com/­objectbox
objectbox.io
www.mireo.com/­spacetimeterminusdb.comvelocitydb.com
Technical documentationdocs.objectbox.ioterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperObjectBox LimitedMireoDataChemist Ltd.VelocityDB Inc
Initial release2017202020182011
Current release4.0 (May 2024)11.0.0, January 20237.x
License infoCommercial or Open SourceBindings are released under Apache 2.0 infoApache License 2.0commercialOpen Source infoGPL V3commercial
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, RustC#
Server operating systemsAndroid
Any POSIX system
Docker
iOS
Linux
macOS
QNX
Windows
LinuxLinuxAny that supports .NET
Data schemeyesyesyesyes
Typing infopredefined data types such as float or dateyes, plus "flex" map-like typesyesyesyes
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.nononono
Secondary indexesyesnoyes
SQL infoSupport of SQLnoA subset of ANSI SQL is implementedSQL-like query language (WOQL)no
APIs and other access methodsProprietary native APIRESTful HTTP APIOWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesC
C++
Dart (Flutter)
Go
Java
Kotlin
Python
Swift
C#
C++
Python
JavaScript
Python
.Net
Server-side scripts infoStored proceduresnonoyesno
TriggersnonoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneFixed-grid hypercubesGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesData sync between devices allowing occasional connected databases to work completely offlineReal-time block device replication (DRBD)Journaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes
User concepts infoAccess controlyesyesRole-based access controlBased on Windows Authentication
More information provided by the system vendor
ObjectBoxSpaceTimeTerminusDB infoformer name was DataChemistVelocityDB
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ObjectBoxSpaceTimeTerminusDB infoformer name was DataChemistVelocityDB
Recent citations in the news

ObjectBox Raises $2M in Funding
4 December 2018, FinSMEs

The Megashift Towards Decentralized Edge Computing
27 August 2021, hackernoon.com

provided by Google News

How TerminusDB is commercializing its open source graph database
16 March 2021, VentureBeat

TerminusDB Takes on Data Collaboration with a git-Like Approach
1 December 2020, The New Stack

Trinity College spinout TerminusDB secures €3.6m in investment
15 March 2021, The Irish Times

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7 April 2022, SiliconRepublic.com

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