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DBMS > Kdb+

Kdb+ System Properties

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Editorial information provided by DB-Engines
NameKdb+
DescriptionHigh performance Time Series DBMS
Primary database modelRelational DBMS
Time Series DBMS
Additional database modelsKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.72
Rank#69  Overall
#37  Relational DBMS
#2  Time Series DBMS
Websitekx.com
Technical documentationcode.kx.com/­wiki/­Main_Page
DeveloperKx Systems
Initial release2000 infokdb was released 2000, kdb+ in 2003
Current release3.3, June 2015
License infoCommercial or Open Sourcecommercial infofree 32-bit version
Cloud-based infoOnly available as a cloud serviceno
Implementation languageC and K
Server operating systemsLinux
OS X
Solaris
Windows
Data schemeyes
Typing infopredefined data types such as float or dateyes
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.no
Secondary indexesyes infotable attribute 'grouped'
SQL infoSupport of SQLSQL-like query language (q)
APIs and other access methodsHTTP API
WebSocket
JDBC
ODBC
Supported programming languagesC#
Go
Java
JavaScript
Lua
Perl
PHP
Python
R
Scala
Server-side scripts infoStored proceduresuser defined functions
Triggersyes infowith views
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infosimilar paradigm used for internal processing
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integrityyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlrights management via user accounts

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More resources
Kdb+
DB-Engines blog posts

Time Series DBMS are the database category with the fastest increase in popularity
4 July 2016, Matthias Gelbmann

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Recent citations in the news

Kx Systems: Kdb+ Powers Trading Platform for BitMEX High-Frequency Bitcoin Exchange
29 June 2017, Business Wire (press release)

First Derivatives (LON:FDP) Just Hit With Downgrade From Berenberg Bank. Will Other Analysts Also Downgrade the ...
17 January 2018, Frisco Fastball

Appointment of Non-Executive Director
15 January 2018, London South East (blog)

Kx acquires rights to Enlightenment Research's PyQ interface to Python for kdb+
23 November 2017, Automated Trader

AquaQ Analytics Launches Kdb+ Training Academy
7 August 2017, Bobsguide (press release)

provided by Google News

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