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DBMS > EXASOL vs. RDF4J vs. TerminusDB vs. VelocityDB

System Properties Comparison EXASOL vs. RDF4J vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameEXASOL  Xexclude from comparisonRDF4J infoformerly known as Sesame  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionHigh-performance, in-memory, MPP database specifically designed for in-memory analytics.RDF4J is a Java framework for processing RDF data, supporting both memory-based and a disk-based storage.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 modelRelational DBMSRDF storeGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.70
Rank#90  Overall
#47  Relational DBMS
Score0.67
Rank#209  Overall
#9  RDF stores
Score0.24
Rank#281  Overall
#24  Graph DBMS
Score0.04
Rank#324  Overall
#32  Graph DBMS
#18  Object oriented DBMS
Websitewww.exasol.comrdf4j.orgterminusdb.comvelocitydb.com
Technical documentationwww.exasol.com/­resourcesrdf4j.org/­documentationterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperExasolSince 2016 officially forked into an Eclipse project, former developer was Aduna Software.DataChemist Ltd.VelocityDB Inc
Initial release2000200420182011
Current release10.0.3, September 20217.x
License infoCommercial or Open SourcecommercialOpen Source infoEclipse Distribution License (EDL), v1.0.Open 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 languageJavaProlog, RustC#
Server operating systemsLinux
OS X
Unix
Windows
LinuxAny that supports .NET
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 indexesyesyesyes
SQL infoSupport of SQLyesnoSQL-like query language (WOQL)no
APIs and other access methods.Net
JDBC
ODBC
WebSocket
Java API
RIO infoRDF Input/Output
Sail API
SeRQL infoSesame RDF Query Language
Sesame REST HTTP Protocol
SPARQL
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesJava
Lua
Python
R
Java
PHP
Python
JavaScript
Python
.Net
Server-side scripts infoStored proceduresuser defined functionsyesyesno
TriggersyesyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesShardingnoneGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsyes infoHadoop integrationnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDACID infoIsolation support depends on the API usedACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infoin-memory storage is supported as wellyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlAccess rights for users, groups and roles according to SQL-standardnoRole-based access controlBased on Windows Authentication

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More resources
EXASOLRDF4J infoformerly known as SesameTerminusDB infoformer name was DataChemistVelocityDB
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