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DBMS > ClickHouse vs. IBM Db2 Event Store

System Properties Comparison ClickHouse vs. IBM Db2 Event Store

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Editorial information provided by DB-Engines
NameClickHouse  Xexclude from comparisonIBM Db2 Event Store  Xexclude from comparison
DescriptionColumn-oriented Relational DBMS powering YandexDistributed Event Store optimized for Internet of Things use cases
Primary database modelRelational DBMSEvent Store
Time Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score3.33
Rank#82  Overall
#41  Relational DBMS
Score0.24
Rank#250  Overall
#2  Event Stores
#15  Time Series DBMS
Websiteclickhouse.yandexwww.ibm.biz/­eventstore
Technical documentationclickhouse.yandex/­docswww.ibm.com/­support/­knowledgecenter/­en/­SSGNPV_1.1.2/­eventstore/­welcome.html
DeveloperYandex LLCIBM
Initial release20162017
Current releasev19.13.3.26, August 20191.1.3
License infoCommercial or Open SourceOpen Source infoApache 2.0commercial infofree developer edition available
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++, Scala
Server operating systemsLinux infoLinux, macOS, Windows for the developer addition
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 indexesno
SQL infoSupport of SQLyes infothrough the embedded Spark runtime
APIs and other access methodsJDBC
RESTful HTTP API
Supported programming languagesJava
Python
Scala
Server-side scripts infoStored proceduresno
Triggersno
Partitioning methods infoMethods for storing different data on different nodesSharding
Replication methods infoMethods for redundantly storing data on multiple nodesActive-active shard replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Foreign keys infoReferential integrityno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano
Concurrency infoSupport for concurrent manipulation of dataNo - written data is immutable
Durability infoSupport for making data persistentYes - Synchronous writes to local disk combined with replication
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlUser level access control

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More resources
ClickHouseIBM Db2 Event Store
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