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DBMS > Kdb vs. Quasardb vs. Typesense vs. VelocityDB

System Properties Comparison Kdb vs. Quasardb vs. Typesense vs. VelocityDB

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Editorial information provided by DB-Engines
NameKdb  Xexclude from comparisonQuasardb  Xexclude from comparisonTypesense  Xexclude from comparisonVelocityDB  Xexclude from comparison
DescriptionHigh performance Time Series DBMSDistributed, high-performance timeseries databaseA typo-tolerant, in-memory search engine optimized for instant search-as-you-type experiences and developer productivityA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelTime Series DBMS
Vector DBMS
Time Series DBMSSearch engineGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score7.73
Rank#45  Overall
#2  Time Series DBMS
#1  Vector DBMS
Score0.13
Rank#332  Overall
#28  Time Series DBMS
Score0.80
Rank#209  Overall
#14  Search engines
Score0.00
Rank#385  Overall
#40  Graph DBMS
#21  Object oriented DBMS
Websitekx.comquasar.aitypesense.orgvelocitydb.com
Technical documentationcode.kx.comdoc.quasar.ai/­mastertypesense.org/­docsvelocitydb.com/­UserGuide
DeveloperKx Systems, a division of First Derivatives plcquasardbVelocityDB Inc
Initial release2000 infokdb was released 2000, kdb+ in 2003200920152011
Current release3.6, May 20183.14.1, January 20247.x
License infoCommercial or Open Sourcecommercial infofree 32-bit versioncommercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensesOpen 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 languageqC++C++C#
Server operating systemsLinux
OS X
Solaris
Windows
BSD
Linux
OS X
Windows
LinuxAny that supports .NET
Data schemeyesschema-freeschema-free infopre-defined schema optionalyes
Typing infopredefined data types such as float or dateyesyes infointeger and binaryyesyes
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.yesnono
Secondary indexesyes infotable attribute 'grouped'yes infowith tagsyesyes
SQL infoSupport of SQLSQL-like query language (q)SQL-like query languagenono
APIs and other access methodsHTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
HTTP APIRESTful HTTP API.Net
Supported programming languagesC
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
.Net infocommunity maintained
Clojure infocommunity maintained
Dart infocommunity maintained
Go infocommunity maintained
Java infocommunity maintained
JavaScript
Perl infocommunity maintained
PHP
Python
Ruby
Rust infocommunity maintained
Swift infocommunity maintained
.Net
Server-side scripts infoStored proceduresuser defined functionsnonono
Triggersyes infowith viewsnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningSharding infoconsistent hashingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationSource-replica replication with selectable replication factorMulti-source replication using RAFT
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infosimilar paradigm used for internal processingwith Hadoop integrationnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyes infoby using LevelDByesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes infoTransient modeyesyes
User concepts infoAccess controlrights management via user accountsCryptographically strong user authentication and audit trailBased on Windows Authentication
More information provided by the system vendor
KdbQuasardbTypesenseVelocityDB
Specific characteristicsIntegrated columnar database & programming system for streaming, real time and historical...
» more
Competitive advantagesprovides seamless scalability; runs on industry standard server platforms; is top-ranked...
» more
Typical application scenariostick database streaming sensor data massive intelligence applications oil and gas...
» more
Key customersGoldman Sachs Morgan Stanley Merrill Lynch J.P. Morgan Deutsche Bank IEX Securities...
» more
Market metricskdb+ performance and reliability proven by our customers in critical infrastructure...
» more
Licensing and pricing modelsupon request
» more

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More resources
KdbQuasardbTypesenseVelocityDB
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