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DBMS > BoltDB vs. KairosDB vs. TerminusDB vs. VelocityDB

System Properties Comparison BoltDB vs. KairosDB vs. TerminusDB vs. VelocityDB

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Editorial information provided by DB-Engines
NameBoltDB  Xexclude from comparisonKairosDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionAn embedded key-value store for Go.Distributed Time Series DBMS based on Cassandra or H2Scalable 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 storeTime Series DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.74
Rank#220  Overall
#31  Key-value stores
Score0.62
Rank#239  Overall
#20  Time Series DBMS
Score0.17
Rank#325  Overall
#29  Graph DBMS
Score0.05
Rank#358  Overall
#36  Graph DBMS
#16  Object oriented DBMS
Websitegithub.com/­boltdb/­boltgithub.com/­kairosdb/­kairosdbterminusdb.comvelocitydb.com
Technical documentationkairosdb.github.ioterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperDataChemist Ltd.VelocityDB Inc
Initial release2013201320182011
Current release1.2.2, November 201811.0.0, January 20237.x
License infoCommercial or Open SourceOpen Source infoMIT LicenseOpen Source infoApache 2.0Open 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 languageGoJavaProlog, RustC#
Server operating systemsBSD
Linux
OS X
Solaris
Windows
Linux
OS X
Windows
LinuxAny that supports .NET
Data schemeschema-freeschema-freeyesyes
Typing infopredefined data types such as float or datenoyesyesyes
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 indexesnonoyes
SQL infoSupport of SQLnonoSQL-like query language (WOQL)no
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesGoJava
JavaScript infoNode.js
PHP
Python
JavaScript
Python
.Net
Server-side scripts infoStored proceduresnonoyesno
TriggersnonoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infobased on CassandraGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesnoneselectable replication factor infobased on CassandraJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesnoACIDACID
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 controlnosimple password-based access controlRole-based access controlBased on Windows Authentication

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More resources
BoltDBKairosDBTerminusDB infoformer name was DataChemistVelocityDB
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