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DBMS > Dragonfly vs. OushuDB vs. SiriDB vs. TerminusDB vs. VelocityDB

System Properties Comparison Dragonfly vs. OushuDB vs. SiriDB vs. TerminusDB vs. VelocityDB

Editorial information provided by DB-Engines
NameDragonfly  Xexclude from comparisonOushuDB  Xexclude from comparisonSiriDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionA drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instanceA data warehouse powered by Apache HAWQ supporting descriptive analysis and advanced machine learningOpen Source Time Series DBMSScalable 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 DBMSTime 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
Score0.49
Rank#261  Overall
#38  Key-value stores
Score0.10
Rank#355  Overall
#154  Relational DBMS
Score0.07
Rank#378  Overall
#42  Time Series DBMS
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitegithub.com/­dragonflydb/­dragonfly
www.dragonflydb.io
www.oushu.com/­product/­oushuDBsiridb.comterminusdb.comvelocitydb.com
Technical documentationwww.dragonflydb.io/­docswww.oushu.com/­documentationdocs.siridb.comterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperDragonflyDB team and community contributorsOushuCesbitDataChemist Ltd.VelocityDB Inc
Initial release2023201720182011
Current release1.0, March 20234.0.1, August 202011.0.0, January 20237.x
License infoCommercial or Open SourceOpen Source infoBSL 1.1commercialOpen Source infoMIT LicenseOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++CProlog, RustC#
Server operating systemsLinuxLinuxLinuxLinuxAny that supports .NET
Data schemescheme-freeyesyesyesyes
Typing infopredefined data types such as float or datestrings, hashes, lists, sets, sorted sets, bit arraysyesyes infoNumeric datayesyes
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 indexesnoyesyesyes
SQL infoSupport of SQLnoFull-featured ANSI SQL supportnoSQL-like query language (WOQL)no
APIs and other access methodsProprietary protocol infoRESP - REdis Serialization ProtocolJDBC
ODBC
HTTP APIOWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesC
C#
C++
Clojure
D
Dart
Elixir
Erlang
Go
Haskell
Java
JavaScript (Node.js)
Lisp
Lua
Objective-C
Perl
PHP
Python
R
Ruby
Rust
Scala
Swift
Tcl
C
C++
C
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
JavaScript
Python
.Net
Server-side scripts infoStored proceduresLuayesnoyesno
Triggerspublish/subscribe channels provide some trigger functionalityyesnoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesyesShardingGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationyesJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoHadoop integrationnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataAtomic execution of command blocks and scriptsACIDnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayes, strict serializability by the serveryesyesyesyes
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.yesyesyes
User concepts infoAccess controlPassword-based authenticationKerberos, SSL and role based accesssimple rights management via user accountsRole-based access controlBased on Windows Authentication

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More resources
DragonflyOushuDBSiriDBTerminusDB infoformer name was DataChemistVelocityDB
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