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DBMS > Ehcache vs. Firebase Realtime Database vs. H2 vs. IBM Cloudant

System Properties Comparison Ehcache vs. Firebase Realtime Database vs. H2 vs. IBM Cloudant

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Editorial information provided by DB-Engines
NameEhcache  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparisonH2  Xexclude from comparisonIBM Cloudant  Xexclude from comparison
DescriptionA widely adopted Java cache with tiered storage optionsCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Full-featured RDBMS with a small footprint, either embedded into a Java application or used as a database server.Database as a Service offering based on Apache CouchDB
Primary database modelKey-value storeDocument storeRelational DBMSDocument store
Secondary database modelsSpatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score5.23
Rank#68  Overall
#8  Key-value stores
Score15.00
Rank#39  Overall
#6  Document stores
Score8.22
Rank#50  Overall
#32  Relational DBMS
Score2.73
Rank#108  Overall
#20  Document stores
Websitewww.ehcache.orgfirebase.google.com/­products/­realtime-databasewww.h2database.comwww.ibm.com/­products/­cloudant
Technical documentationwww.ehcache.org/­documentationfirebase.google.com/­docs/­databasewww.h2database.com/­html/­main.htmlcloud.ibm.com/­docs/­Cloudant
DeveloperTerracotta Inc, owned by Software AGGoogle infoacquired by Google 2014Thomas MuellerIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014
Initial release2009201220052010
Current release3.10.0, March 20222.2.220, July 2023
License infoCommercial or Open SourceOpen Source infoApache Version 2; commercial licenses availablecommercialOpen Source infodual-licence (Mozilla public license, Eclipse public license)commercial
Cloud-based only infoOnly available as a cloud servicenoyesnoyes
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJavaErlang
Server operating systemsAll OS with a Java VMhostedAll OS with a Java VMhosted
Data schemeschema-freeschema-freeyesschema-free
Typing infopredefined data types such as float or dateyesyesyesno
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.nononono
Secondary indexesnoyesyesyes
SQL infoSupport of SQLnonoyesno
APIs and other access methodsJCacheAndroid
iOS
JavaScript API
RESTful HTTP API
JDBC
ODBC
RESTful HTTP/JSON API
Supported programming languagesJavaJava
JavaScript
Objective-C
JavaC#
Java
JavaScript
Objective-C
PHP
Ruby
Server-side scripts infoStored proceduresnolimited functionality with using 'rules'Java Stored Procedures and User-Defined FunctionsView functions (Map-Reduce) in JavaScript
Triggersyes infoCache Event ListenersCallbacks are triggered when data changesyesyes
Partitioning methods infoMethods for storing different data on different nodesSharding infoby using Terracotta ServernoneSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyes infoby using Terracotta ServerWith clustering: 2 database servers on different computers operate on identical copies of a databaseMulti-source replication
Source-replica replication
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemTunable Consistency (Strong, Eventual, Weak)Eventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Immediate ConsistencyEventual Consistency
Foreign keys infoReferential integritynonoyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayes infosupports JTA and can work as an XA resourceyesACIDno infoatomic operations within a document possible
Concurrency infoSupport for concurrent manipulation of datayesyesyes, multi-version concurrency control (MVCC)yes infoOptimistic locking
Durability infoSupport for making data persistentyes infousing a tiered cache-storage approachyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesno
User concepts infoAccess controlnoyes, based on authentication and database rulesfine grained access rights according to SQL-standardAccess rights for users can be defined per database

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EhcacheFirebase Realtime DatabaseH2IBM Cloudant
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