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DBMS > ClickHouse vs. H2 vs. Memcached vs. ToroDB

System Properties Comparison ClickHouse vs. H2 vs. Memcached vs. ToroDB

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
NameClickHouse  Xexclude from comparisonH2  Xexclude from comparisonMemcached  Xexclude from comparisonToroDB  Xexclude from comparison
DescriptionColumn-oriented Relational DBMS powering YandexFull-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.In-memory key-value store, originally intended for cachingA MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database modelRelational DBMSRelational DBMSKey-value storeDocument store
Secondary database modelsTime Series DBMSSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score10.63
Rank#45  Overall
#29  Relational DBMS
Score9.69
Rank#48  Overall
#30  Relational DBMS
Score25.66
Rank#30  Overall
#4  Key-value stores
Score0.08
Rank#320  Overall
#41  Document stores
Websiteclickhouse.techwww.h2database.comwww.memcached.orgwww.torodb.com
Technical documentationclickhouse.tech/­docswww.h2database.com/­html/­main.htmlgithub.com/­memcached/­memcached/­wikiwww.torodb.com/­stampede/­docs
DeveloperYandex LLCThomas MuellerDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournal8Kdata
Initial release2016200520032016
Current releasev20.11.3.3-stable, November 20201.4.200, October 20191.6.9, November 2020
License infoCommercial or Open SourceOpen Source infoApache 2.0Open Source infodual-licence (Mozilla public license, Eclipse public license)Open Source infoBSD licenseOpen Source infoAGPL-V3
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 languageC++JavaCJava
Server operating systemsFreeBSD
Linux
macOS
All OS with a Java VMFreeBSD
Linux
OS X
Unix
Windows
All OS with a Java 7 VM
Data schemeyesyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesnoyes infostring, integer, double, boolean, date, object_id
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.nonono
Secondary indexesnoyesno
SQL infoSupport of SQLClose to ANSI SQLyesno
APIs and other access methodsHTTP REST
JDBC
ODBC
Proprietary protocol
JDBC
ODBC
Proprietary protocol
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
Java.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
Server-side scripts infoStored proceduresnoJava Stored Procedures and User-Defined Functionsno
Triggersnoyesnono
Partitioning methods infoMethods for storing different data on different nodesnonenoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesWith clustering: 2 database servers on different computers operate on identical copies of a databasenone infoRepcached, a Memcached patch, provides this functionallitySource-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynoyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDnono
Concurrency infoSupport for concurrent manipulation of datayesyes, multi-version concurrency control (MVCC)yesyes
Durability infoSupport for making data persistentyesyesnoyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlAccess rights for users and rolesfine grained access rights according to SQL-standardyes infousing SASL (Simple Authentication and Security Layer) protocolAccess rights for users and roles

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More resources
ClickHouseH2MemcachedToroDB
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Recent citations in the news

Speedy Column-Store ClickHouse Spins Out from Yandex, Raises $50M
24 September 2021, Datanami

ClickHouse, Inc. Announces Incorporation, Along With $50M In Series A Funding
20 September 2021, Business Wire

ClickHouse spins out from Yandex and other NYC tech news - New York Business Journal
27 September 2021, New York Business Journal

Yandex invests in business based on ClickHouse
22 September 2021, Telecompaper EN

Yandex to launch cloud business in Germany
24 September 2021, DatacenterDynamics

provided by Google News

Google Releases Memorystore for Memcached into General Availability
9 March 2021, InfoQ.com

Google Cloud rolls out Memcached database caching – Blocks and Files
4 April 2020, Blocks and Files

​Memcached DDoS: The biggest, baddest denial of service attacker yet
1 March 2018, ZDNet

Google Unveils Memorystore for Memcached
6 April 2020, Database Trends and Applications

What are memcached servers, and why are they being used to launch record-setting DDoS attacks?
6 March 2018, GeekWire

provided by Google News

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