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

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

Editorial information provided by DB-Engines
NameBangdb  Xexclude from comparisonDragonfly  Xexclude from comparisonSiriDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionConverged and high performance database for device data, events, time series, document and graphA drop-in Redis replacement that scales vertically to support millions of operations per second and terabyte sized workloads, all on a single instanceOpen 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 modelDocument store
Graph DBMS
Time Series DBMS
Key-value storeTime Series DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsSpatial DBMSDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.16
Rank#338  Overall
#47  Document stores
#32  Graph DBMS
#31  Time Series DBMS
Score0.49
Rank#261  Overall
#38  Key-value stores
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
Websitebangdb.comgithub.com/­dragonflydb/­dragonfly
www.dragonflydb.io
siridb.comterminusdb.comvelocitydb.com
Technical documentationdocs.bangdb.comwww.dragonflydb.io/­docsdocs.siridb.comterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperSachin Sinha, BangDBDragonflyDB team and community contributorsCesbitDataChemist Ltd.VelocityDB Inc
Initial release20122023201720182011
Current releaseBangDB 2.0, October 20211.0, March 202311.0.0, January 20237.x
License infoCommercial or Open SourceOpen Source infoBSD 3Open Source infoBSL 1.1Open Source infoMIT LicenseOpen Source infoGPL V3commercial
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC, C++C++CProlog, RustC#
Server operating systemsLinuxLinuxLinuxLinuxAny that supports .NET
Data schemeschema-freescheme-freeyesyesyes
Typing infopredefined data types such as float or dateyes: string, long, double, int, geospatial, stream, eventsstrings, hashes, lists, sets, sorted sets, bit arraysyes 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.nonononono
Secondary indexesyes infosecondary, composite, nested, reverse, geospatialnoyesyes
SQL infoSupport of SQLSQL like support with command line toolnonoSQL-like query language (WOQL)no
APIs and other access methodsProprietary protocol
RESTful HTTP API
Proprietary protocol infoRESP - REdis Serialization ProtocolHTTP APIOWL
RESTful HTTP API
WOQL (Web Object Query Language)
.Net
Supported programming languagesC
C#
C++
Java
Python
C
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++
Go
Java
JavaScript (Node.js)
PHP
Python
R
JavaScript
Python
.Net
Server-side scripts infoStored proceduresnoLuanoyesno
Triggersyes, Notifications (with Streaming only)publish/subscribe channels provide some trigger functionalitynoyesCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodesSharding (enterprise version only). P2P based virtual network overlay with consistent hashing and chord algorithmShardingGraph PartitioningSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor, Knob for CAP (enterprise version only)Source-replica replicationyesJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemTunable consistency, set CAP knob accordinglyEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDAtomic execution of command blocks and scriptsnoACIDACID
Concurrency infoSupport for concurrent manipulation of datayes, optimistic concurrency controlyes, strict serializability by the serveryesyesyes
Durability infoSupport for making data persistentyes, implements WAL (Write ahead log) as wellyesyesyes infoin-memory journalingyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes, run db with in-memory only modeyesyesyes
User concepts infoAccess controlyes (enterprise version only)Password-based authenticationsimple rights management via user accountsRole-based access controlBased on Windows Authentication

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More resources
BangdbDragonflySiriDBTerminusDB infoformer name was DataChemistVelocityDB
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