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DBMS > DataFS vs. HyperSQL vs. TerminusDB vs. VelocityDB

System Properties Comparison DataFS vs. HyperSQL vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameDataFS  Xexclude from comparisonHyperSQL infoalso known as HSQLDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAll data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.Multithreaded, transactional RDBMS written in Java infoalso known as HSQLDBScalable 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 DBMSRelational DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsGraph DBMSDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.06
Rank#354  Overall
#15  Object oriented DBMS
Score3.49
Rank#87  Overall
#47  Relational DBMS
Score0.17
Rank#325  Overall
#29  Graph DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitenewdatabase.comhsqldb.orgterminusdb.comvelocitydb.com
Technical documentationdev.mobiland.com/­Overview.xsphsqldb.org/­web/­hsqlDocsFrame.htmlterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperMobiland AGDataChemist Ltd.VelocityDB Inc
Initial release2018200120182011
Current release1.1.263, October 20222.7.2, June 202311.0.0, January 20237.x
License infoCommercial or Open SourcecommercialOpen Source infobased on BSD licenseOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaProlog, RustC#
Server operating systemsWindowsAll OS with a Java VM infoEmbedded (into Java applications) and Client-Server operating modesLinuxAny that supports .NET
Data schemeClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)yesyesyes
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.nononono
Secondary indexesnoyesyes
SQL infoSupport of SQLnoyesSQL-like query language (WOQL)no
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
HTTP API infoJDBC via HTTP
JDBC
ODBC
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languages.Net
C
C#
C++
VB.Net
All languages supporting JDBC/ODBC
Java
JavaScript
Python
.Net
Server-side scripts infoStored proceduresJava, SQLyesno
Triggersno, except callback-events from server when changes happenedyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemnoneGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneJournaling 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 integrityyesyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACIDACID
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.noyesyes
User concepts infoAccess controlWindows-Profilefine grained access rights according to SQL-standardRole-based access controlBased on Windows Authentication

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More resources
DataFSHyperSQL infoalso known as HSQLDBTerminusDB infoformer name was DataChemistVelocityDB
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HyperSQL DataBase flaw leaves library vulnerable to RCE
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