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DBMS > EventStoreDB vs. FatDB vs. Heroic vs. Oracle Coherence

System Properties Comparison EventStoreDB vs. FatDB vs. Heroic vs. Oracle Coherence

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Editorial information provided by DB-Engines
NameEventStoreDB  Xexclude from comparisonFatDB  Xexclude from comparisonHeroic  Xexclude from comparisonOracle Coherence  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionIndustrial-strength, open-source database solution built from the ground up for event sourcing.A .NET NoSQL DBMS that can integrate with and extend SQL Server.Time Series DBMS built at Spotify based on Cassandra or Google Cloud Bigtable, and ElasticSearchOracles in-memory data grid solution
Primary database modelEvent StoreDocument store
Key-value store
Time Series DBMSKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score1.07
Rank#181  Overall
#1  Event Stores
Score0.13
Rank#335  Overall
#29  Time Series DBMS
Score1.90
Rank#127  Overall
#21  Key-value stores
Websitewww.eventstore.comgithub.com/­spotify/­heroicwww.oracle.com/­java/­coherence
Technical documentationdevelopers.eventstore.comspotify.github.io/­heroicdocs.oracle.com/­en/­middleware/­standalone/­coherence
DeveloperEvent Store LimitedFatCloudSpotifyOracle
Initial release2012201220142007
Current release21.2, February 202114.1, August 2023
License infoCommercial or Open SourceOpen SourcecommercialOpen Source infoApache 2.0commercial
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC#JavaJava
Server operating systemsLinux
Windows
WindowsAll OS with a Java VM
Data schemeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or dateyesyesyes
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
Secondary indexesyesyes infovia Elasticsearchno
SQL infoSupport of SQLno infoVia inetgration in SQL Servernono
APIs and other access methods.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
HQL (Heroic Query Language, a JSON-based language)
HTTP API
JCache
JPA
RESTful HTTP API
Supported programming languagesC#.Net
C++
Java
Server-side scripts infoStored proceduresyes infovia applicationsnono
Triggersyes infovia applicationsnoyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesShardingShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factoryesyes, with selectable consistency level
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Eventual Consistency
Immediate Consistency
Eventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanonoconfigurable
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyesyesyes infooptionally
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlno infoCan implement custom security layer via applicationsauthentification to access the cache via certificates or http basic authentication

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More resources
EventStoreDBFatDBHeroicOracle Coherence
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