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DBMS > ClickHouse vs. EJDB vs. Kdb+ vs. SingleStore

System Properties Comparison ClickHouse vs. EJDB vs. Kdb+ vs. SingleStore

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Editorial information provided by DB-Engines
NameClickHouse  Xexclude from comparisonEJDB  Xexclude from comparisonKdb+  Xexclude from comparisonSingleStore infoformer name was MemSQL  Xexclude from comparison
DescriptionColumn-oriented Relational DBMS powering YandexEmbeddable document-store database library with JSON representation of queries (in MongoDB style)High performance Time Series DBMSMySQL wire-compliant distributed RDBMS that combines an in-memory row-oriented and a disc-based column-oriented storage with patented universal storage to handle transactional and analytical workloads in one single table type
Primary database modelRelational DBMSDocument storeTime Series DBMSRelational DBMS
Secondary database modelsTime Series DBMSRelational DBMSDocument store
Spatial DBMS
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score12.83
Rank#45  Overall
#29  Relational DBMS
Score0.09
Rank#317  Overall
#42  Document stores
Score9.12
Rank#53  Overall
#2  Time Series DBMS
Score6.66
Rank#63  Overall
#36  Relational DBMS
Websiteclickhouse.techejdb.orgkx.comwww.singlestore.com
Technical documentationclickhouse.tech/­docsgithub.com/­Softmotions/­ejdb/­blob/­master/­README.mdcode.kx.comdocs.singlestore.com
DeveloperClickhouse Inc.SoftmotionsKx Systems, a division of First Derivatives plcSingleStore Inc.
Initial release201620122000 infokdb was released 2000, kdb+ in 20032013
Current releasev22.4.5.9-stable, May 20223.6, May 20187.6, November 2021
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infoGPLv2commercial infofree 32-bit versioncommercial infofree developer edition available
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.
SingleStore Managed Service: The world's fastest, modern cloud database for both operational (OLTP) and analytical (OLAP) workloads. Available instantly with multi-cloud and hybrid-cloud capabilities
Implementation languageC++CqC++, Go
Server operating systemsFreeBSD
Linux
macOS
server-lessLinux
OS X
Solaris
Windows
Linux info64 bit version required
Data schemeyesschema-freeyesyes
Typing infopredefined data types such as float or dateyesyes infostring, integer, double, bool, date, object_idyesyes
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.noyesno
Secondary indexesnonoyes infotable attribute 'grouped'yes
SQL infoSupport of SQLClose to ANSI SQLnoSQL-like query language (q)yes infobut no triggers and foreign keys
APIs and other access methodsHTTP REST
JDBC
ODBC
Proprietary protocol
in-process shared libraryHTTP API
JDBC
Jupyter
Kafka
ODBC
WebSocket
Cluster Management API infoas HTTP Rest and CLI
HTTP API
JDBC
ODBC
Supported programming languagesC# info3rd party library
C++
Elixir info3rd party library
Go info3rd party library
Java info3rd party library
JavaScript (Node.js) info3rd party library
Kotlin info3rd party library
Nim info3rd party library
Perl info3rd party library
PHP info3rd party library
Python info3rd party library
R info3rd party library
Ruby info3rd party library
Scala info3rd party library
Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby
C
C#
C++
Go
J
Java
JavaScript
Lua
MatLab
Perl
PHP
Python
R
Scala
Bash
C
C#
Java
JavaScript (Node.js)
Python
Server-side scripts infoStored proceduresnonouser defined functionsyes
Triggersnonoyes infowith viewsno
Partitioning methods infoMethods for storing different data on different nodesnonehorizontal partitioningSharding infohash partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnoneSource-replica replicationSource-replica replication infostores two copies of each physical data partition on two separate nodes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono infosimilar paradigm used for internal processingno infocan define user-defined aggregate functions for map-reduce-style calculations
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynono infotypically not needed, however similar functionality with collection joins possibleyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanononoACID
Concurrency infoSupport for concurrent manipulation of datayesyes infoRead/Write Lockingyesyes, multi-version concurrency control (MVCC)
Durability infoSupport for making data persistentyesyesyesyes infoAll updates are persistent, including those to disk-based columnstores and memory-based row stores. Transaction commits are supported via write-ahead log.
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyes
User concepts infoAccess controlAccess rights for users and rolesnorights management via user accountsFine grained access control via users, groups and roles
More information provided by the system vendor
ClickHouseEJDBKdb+SingleStore infoformer name was MemSQL
Specific characteristicsSingleStore offers a fully-managed , distributed, highly-scalable SQL database designed...
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Competitive advantagesSingleStore’s competitive advantages include: Easy and Simplified Architecture with...
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Typical application scenariosDriving Fast Analytics: SingleStore delivers the fastest and most scalable reporting...
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Key customersIEX Cloud : Improves Financial Data Distribution Speed 15x with Singlestore DB Comcast,...
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Market metricsCustomers in various industries worldwide including US and International Industry...
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Licensing and pricing modelsF ree Tier and Enterprise Edition
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ClickHouseEJDBKdb+SingleStore infoformer name was MemSQL
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