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DBMS > TerminusDB vs. VelocityDB vs. Yaacomo

System Properties Comparison TerminusDB vs. VelocityDB vs. Yaacomo

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Editorial information provided by DB-Engines
NameTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparisonYaacomo  Xexclude from comparison
DescriptionScalable 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)OpenCL based in-memory RDBMS, designed for efficiently utilizing the hardware via parallel computing
Primary database modelGraph DBMSGraph DBMS
Object oriented DBMS
Relational DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.02
Rank#342  Overall
#32  Graph DBMS
Score0.07
Rank#311  Overall
#30  Graph DBMS
#16  Object oriented DBMS
Score0.00
Rank#343  Overall
#139  Relational DBMS
Websiteterminusdb.comvelocitydb.comyaacomo.com
Technical documentationterminusdb.com/­docsvelocitydb.com/­UserGuide
DeveloperDataChemist Ltd.VelocityDB IncQ2WEB GmbH
Initial release201820112009
Current release1.0, 20187.x
License infoCommercial or Open SourceOpen Source infoGPL V3commercialcommercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageProlog, RustC#
Server operating systemsLinuxAny that supports .NETAndroid
Linux
Windows
Data schemeyesyesyes
Typing infopredefined data types such as float or dateyesyesyes
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 SQLSQL-like query language (WOQL)noyes
APIs and other access methodsOWL
RESTful HTTP API
WOQL (Web Object Query Language)
.NetJDBC
ODBC
Supported programming languagesJavaScript
Python
.Net
Server-side scripts infoStored proceduresyesno
TriggersyesCallbacks are triggered when data changesyes
Partitioning methods infoMethods for storing different data on different nodesGraph PartitioningShardinghorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesJournaling StreamsMaster-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infoin-memory journalingyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlRole-based access controlBased on Windows Authenticationfine grained access rights according to SQL-standard

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