DB-EnginesInfluxDB download bannerEnglish
Deutsch
Knowledge Base of Relational and NoSQL Database Management Systemsprovided by solid IT

DBMS > Kdb+ vs. Solr vs. Sqrrl

System Properties Comparison Kdb+ vs. Solr vs. Sqrrl

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameKdb+  Xexclude from comparisonSolr  Xexclude from comparisonSqrrl  Xexclude from comparison
Sqrrl has been acquired by Amazon and became a part of Amazon Web Services. It will be removed from the DB-Engines ranking.
DescriptionHigh performance Time Series DBMSA widely used enterprise search engine based on Apache LuceneAdaptable, secure NoSQL built on Apache Accumulo
Primary database modelTime Series DBMSSearch engineDocument store
Graph DBMS
Key-value store
Wide column store
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score5.29
Rank#60  Overall
#2  Time Series DBMS
Score57.78
Rank#17  Overall
#3  Search engines
Score0.49
Rank#209  Overall
#31  Document stores
#17  Graph DBMS
#36  Key-value stores
#10  Wide column stores
Websitekx.comlucene.apache.org/­solrsqrrl.com/
Technical documentationcode.kx.comlucene.apache.org/­solr/­resources.html
DeveloperKx Systems, a division of First Derivatives plcApache Software FoundationAmazon infooriginally Sqrrl Data, Inc.
Initial release2000 infokdb was released 2000, kdb+ in 200320042012
Current release3.6, May 20188.3.0, November 2019
License infoCommercial or Open Sourcecommercial infofree 32-bit versionOpen Source infoApache Version 2commercial
Cloud-based only infoOnly available as a cloud servicenonono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageqJavaJava
Server operating systemsLinux
OS X
Solaris
Windows
All OS with a Java VM and a servlet container inforuns as a servlet in servlet container (e.g. Tomcat, Jetty is included)Linux
Data schemeyesyes infoDynamic Fields enables on-the-fly addition of new fieldsschema-free
Typing infopredefined data types such as float or dateyesyes infosupports customizable data types and automatic typingyes
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.yesno
Secondary indexesyes infotable attribute 'grouped'yes infoAll search fields are automatically indexedyes
SQL infoSupport of SQLSQL-like query language (q)no infosupports limited query time joinsno
APIs and other access methodsHTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
Java API
RESTful HTTP API
Accumulo Shell
Java API
JDBC
ODBC
RESTful HTTP API
Thrift
Supported programming languagesC
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
.Net
Erlang
Java
JavaScript
any language that supports sockets and either XML or JSON
Perl
PHP
Python
Ruby
Scala
Actionscript
C infousing GLib
C#
C++
Cocoa
Delphi
Erlang
Go
Haskell
Java
JavaScript
OCaml
Perl
PHP
Python
Ruby
Smalltalk
Server-side scripts infoStored proceduresuser defined functionsJava pluginsno
Triggersyes infowith viewsyes infoUser configurable commands triggered on index changesno
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioningShardingSharding infomaking use of Hadoop
Replication methods infoMethods for redundantly storing data on multiple nodesMaster-slave replicationcloud/distributed (via Zookeeper)
Master-slave replication
selectable replication factor infomaking use of Hadoop
MapReduce infoOffers an API for user-defined Map/Reduce methodsno infosimilar paradigm used for internal processingnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual Consistency infoslaves poll the master in predefined intervallsImmediate Consistency infoDocument store kept consistent with combination of global timestamping, row-level transactions, and server-side consistency resolution.
Foreign keys infoReferential integrityyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanooptimistic locking infoSolr 4Atomic updates per row, document, or graph entity
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesno
User concepts infoAccess controlrights management via user accountsCell-level Security, Data-Centric Security, Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC)
More information provided by the system vendor
Kdb+SolrSqrrl
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

We invite representatives of system vendors to contact us for updating and extending the system information,
and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.

Related products and services

We invite representatives of vendors of related products to contact us for presenting information about their offerings here.

More resources
Kdb+SolrSqrrl
DB-Engines blog posts

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

show all

Elasticsearch replaced Solr as the most popular search engine
12 January 2016, Paul Andlinger

Enterprise Search Engines almost double their popularity in the last 12 months
2 July 2014, Paul Andlinger

The DB-Engines ranking includes now search engines
4 February 2013, Paul Andlinger

show all

Recent citations in the news

Kx to power analytics for US real estate giant Zillow
3 April 2019, Associated Press

WekaIO, Penguin Computing Set Performance Record on STAC-M3 'Tick Analytics' Benchmark
7 June 2019, HPCwire

Analyze and adapt: Data pros at 4 Chicago companies discuss how trends influence projects
16 April 2019, Built In Chicago

Lenovo Announces Data Center Portfolio Refresh – Featuring New Intel® Processors, Persistent Memory and Enhanced Security
2 April 2019, Associated Press

It’s About Time For Time Series Databases
25 January 2018, The Next Platform

provided by Google News

Lather and lattes
15 November 2019, KVOA Tucson News

Southwest Oasis Labrador Rescue to hold donation Dog Wash
15 November 2019, KVOA Tucson News

Solar Alliance Completes Solar System for Kentucky Poultry Producer and Targets More Than 850 Poultry Producers with Caterpillar Dealer Whayne Supply Company
20 November 2019, Yahoo Finance

How Does Solar Alliance Energy Inc. (CVE:SOLR) Affect Your Portfolio Volatility?
7 November 2019, Simply Wall St

Enterprise Semantic Search Software Market to See Major Growth by 2027 | Swiftype, Algolia, Elasticsearch, Apache Solr, SearchSpring, AddSearch, SLI Systems, Amazon CloudSearch, Coveo, FishEye, and Inbenta
12 November 2019, Market Expert

provided by Google News

[Tech30] These industry veterans’ startup encourages millennials to save and invest money smartly
28 October 2019, YourStory

Amazon's cloud business acquires Sqrrl, a security start-up with NSA roots
23 January 2018, CNBC

User And Entity Behavior Analytics Market 2019-2025 | Rapid7, Varonis Systems, Gurucul, Niara, Inc, Sqrrl Data
24 October 2019, Market Expert

User And Entity Behavior Analytics Market Research Report (2019-2025): Driving Factors, Growth and Applications | Varonis Systems Inc., Microsoft Corporation, Bottomline Technologies Inc.
19 November 2019, The Connect Report

The Latest Research Progress On User and Entity Behavior Analytics Market- Comprehensive Study By Key Players| Splunk, Securonix, Varonis, Etc.
20 November 2019, The Raleigh Recorder

provided by Google News

Job opportunities

Electronic Trading Desk Strategist
Fidelity Investments, Boston, MA

Algorithmic Trading Test Senior Engineer
RBC, New York, NY

Quantitative Analyst
KKI Capital, New York, NY

Junior Variant Scientist
Tempus, Chicago, IL

Data Analytics
Quantbot Technologies, New York, NY

Data Engineer
Everis, Connecticut

Systems Analyst
Visa, Austin, TX

Cloud Support Associate – Windows
Amazon Web Services, Inc., Herndon, VA

Engineer - Chatbot Developer
American Express, Phoenix, AZ

Associate, Corporate Actions
BlackRock, Wilmington, DE

Cybersecurity Threat Hunter
Arete Advisors, New York, NY

NASA Cyber Hunt Analyst
KeyLogic Systems, Fairmont, WV

Information Security Analyst
American Institutes for Research, Washington, DC

Network Security Engineer
American Institutes for Research, Washington, DC

Security Operations Center (SOC) Analyst (Night Shift)
XOR Security, Herndon, VA

jobs by Indeed




Share this page

Featured Products

Couchbase logo

SQL + JSON + NoSQL.
Power, flexibility & scale.
All open source.
Get started now.

Redis logo

Hosted, serverless DBaaS
in 3 steps.

30MB Free!
Start now.

AllegroGraph logo

Graph Database Leader for AI Knowledge Graph Applications - The Most Secure Graph Database Available.
Free Download

Neo4j logo

Get your free copy of the new O'Reilly book Graph Algorithms with 20+ examples for
machine learning, graph analytics and more.


Datastax logo

Build data-driven applications that set the standard for performance, availability,
& scale with DataStax.
Learn more.

Present your product here