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DBMS > Oracle Coherence vs. Prometheus vs. Quasardb vs. Tkrzw

System Properties Comparison Oracle Coherence vs. Prometheus vs. Quasardb vs. Tkrzw

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Editorial information provided by DB-Engines
NameOracle Coherence  Xexclude from comparisonPrometheus  Xexclude from comparisonQuasardb  Xexclude from comparisonTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet  Xexclude from comparison
DescriptionOracles in-memory data grid solutionOpen-source Time Series DBMS and monitoring systemDistributed, high-performance timeseries databaseA concept of libraries, allowing an application program to store and query key-value pairs in a file. Successor of Tokyo Cabinet and Kyoto Cabinet
Primary database modelKey-value storeTime Series DBMSTime Series DBMSKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.92
Rank#130  Overall
#22  Key-value stores
Score8.42
Rank#47  Overall
#2  Time Series DBMS
Score0.14
Rank#332  Overall
#29  Time Series DBMS
Score0.00
Rank#383  Overall
#60  Key-value stores
Websitewww.oracle.com/­java/­coherenceprometheus.ioquasar.aidbmx.net/­tkrzw
Technical documentationdocs.oracle.com/­en/­middleware/­standalone/­coherenceprometheus.io/­docsdoc.quasar.ai/­master
DeveloperOraclequasardbMikio Hirabayashi
Initial release2007201520092020
Current release14.1, August 20233.14.1, January 20240.9.3, August 2020
License infoCommercial or Open SourcecommercialOpen Source infoApache 2.0commercial infoFree community edition, Non-profit organizations and non-commercial usage are eligible for free licensesOpen Source infoApache Version 2.0
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 languageJavaGoC++C++
Server operating systemsAll OS with a Java VMLinux
Windows
BSD
Linux
OS X
Windows
Linux
macOS
Data schemeschema-freeyesschema-freeschema-free
Typing infopredefined data types such as float or dateyesNumeric data onlyyes infointeger and binaryno
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.nono infoImport of XML data possiblenono
Secondary indexesnonoyes infowith tags
SQL infoSupport of SQLnonoSQL-like query languageno
APIs and other access methodsJCache
JPA
RESTful HTTP API
RESTful HTTP/JSON APIHTTP API
Supported programming languages.Net
C++
Java
.Net
C++
Go
Haskell
Java
JavaScript (Node.js)
Python
Ruby
.Net
C
C#
C++
Go
Java
JavaScript (Node.js)
PHP
Python
R
C++
Java
Python
Ruby
Server-side scripts infoStored proceduresnononono
Triggersyes infoLive Eventsnonono
Partitioning methods infoMethods for storing different data on different nodesShardingShardingSharding infoconsistent hashingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyes, with selectable consistency levelyes infoby FederationSource-replica replication with selectable replication factornone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonowith Hadoop integrationno
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
noneImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataconfigurablenoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyes infooptionallyyesyes infoby using LevelDByes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes infoTransient modeyes infousing specific database classes
User concepts infoAccess controlauthentification to access the cache via certificates or http basic authenticationnoCryptographically strong user authentication and audit trailno

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Oracle CoherencePrometheusQuasardbTkrzw infoSuccessor of Tokyo Cabinet and Kyoto Cabinet
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