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DBMS > KairosDB vs. RDFox vs. RisingWave vs. VelocityDB

System Properties Comparison KairosDB vs. RDFox vs. RisingWave vs. VelocityDB

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Editorial information provided by DB-Engines
NameKairosDB  Xexclude from comparisonRDFox  Xexclude from comparisonRisingWave  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionDistributed Time Series DBMS based on Cassandra or H2High performance knowledge graph and semantic reasoning engineA distributed RDBMS for stream processing, wire-compatible with PostgreSQLA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMSGraph DBMS
RDF store
Relational DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.67
Rank#233  Overall
#20  Time Series DBMS
Score0.29
Rank#300  Overall
#24  Graph DBMS
#13  RDF stores
Score0.64
Rank#238  Overall
#110  Relational DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitegithub.com/­kairosdb/­kairosdbwww.oxfordsemantic.techwww.risingwave.com/­databasevelocitydb.com
Technical documentationkairosdb.github.iodocs.oxfordsemantic.techdocs.risingwave.com/­docs/­current/­introvelocitydb.com/­UserGuide
DeveloperOxford Semantic TechnologiesRisingWave LabsVelocityDB Inc
Initial release2013201720222011
Current release1.2.2, November 20186.0, Septermber 20221.2, September 20237.x
License infoCommercial or Open SourceOpen Source infoApache 2.0commercialOpen Source infoApache Version 2.0commercial
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 languageJavaC++RustC#
Server operating systemsLinux
OS X
Windows
Linux
macOS
Windows
Docker
Linux
macOS
Any that supports .NET
Data schemeschema-freeyes infoRDF schemasyesyes
Typing infopredefined data types such as float or dateyesyesStandard SQL-types and JSONyes
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 indexesnoyesyes
SQL infoSupport of SQLnonoyesno
APIs and other access methodsGraphite protocol
HTTP REST
Telnet API
RESTful HTTP API
SPARQL 1.1
JDBC
PostgreSQL wire protocol
.Net
Supported programming languagesJava
JavaScript infoNode.js
PHP
Python
C
Java
Go
Java
JavaScript (Node.js)
Python
.Net
Server-side scripts infoStored proceduresnoUDFs in Python or Javano
TriggersnonoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding infobased on CassandraSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infobased on Cassandrareplication via a shared file system
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infobased on Cassandra
Immediate Consistency infobased on Cassandra
Immediate Consistency in stand-alone mode, Eventual Consistency in replicated setupsImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyesyesyes
User concepts infoAccess controlsimple password-based access controlRoles, resources, and access typesUsers and RolesBased on Windows Authentication

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More resources
KairosDBRDFoxRisingWaveVelocityDB
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