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DBMS > BoltDB vs. IBM Db2 warehouse vs. RDFox vs. TerminusDB vs. VelocityDB

System Properties Comparison BoltDB vs. IBM Db2 warehouse vs. RDFox vs. TerminusDB vs. VelocityDB

Editorial information provided by DB-Engines
NameBoltDB  Xexclude from comparisonIBM Db2 warehouse infoformerly named IBM dashDB  Xexclude from comparisonRDFox  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAn embedded key-value store for Go.Cloud-based data warehousing serviceHigh performance knowledge graph and semantic reasoning engineScalable 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 modelKey-value storeRelational DBMSGraph DBMS
RDF store
Graph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMSDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.80
Rank#215  Overall
#31  Key-value stores
Score1.37
Rank#160  Overall
#74  Relational DBMS
Score0.29
Rank#300  Overall
#24  Graph DBMS
#13  RDF stores
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitegithub.com/­boltdb/­boltwww.ibm.com/­products/­db2/­warehousewww.oxfordsemantic.techterminusdb.comvelocitydb.com
Technical documentationdocs.oxfordsemantic.techterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperIBMOxford Semantic TechnologiesDataChemist Ltd.VelocityDB Inc
Initial release20132014201720182011
Current release6.0, Septermber 202211.0.0, January 20237.x
License infoCommercial or Open SourceOpen Source infoMIT LicensecommercialcommercialOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenoyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageGoC++Prolog, RustC#
Server operating systemsBSD
Linux
OS X
Solaris
Windows
hostedLinux
macOS
Windows
LinuxAny that supports .NET
Data schemeschema-freeyesyes infoRDF schemasyesyes
Typing infopredefined data types such as float or datenoyesyesyesyes
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.nono infoImport/export of XML data possiblenono
Secondary indexesnoyesyes
SQL infoSupport of SQLnoyesnoSQL-like query language (WOQL)no
APIs and other access methods.NET Client API
JDBC
ODBC
OLE DB
RESTful HTTP API
SPARQL 1.1
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesGoJava
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
C
Java
JavaScript
Python
.Net
Server-side scripts infoStored proceduresnoPL/SQL, SQL PLyesno
TriggersnoyesyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneyesreplication via a shared file systemJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneImmediate ConsistencyImmediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate Consistency
Foreign keys infoReferential integritynoyesyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyesyes
User concepts infoAccess controlnofine grained access rights according to SQL-standardRoles, resources, and access typesRole-based access controlBased on Windows Authentication

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More resources
BoltDBIBM Db2 warehouse infoformerly named IBM dashDBRDFoxTerminusDB infoformer name was DataChemistVelocityDB
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