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DBMS > Cassandra vs. Firebase Realtime Database vs. Oracle Coherence

System Properties Comparison Cassandra vs. Firebase Realtime Database vs. Oracle Coherence

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Editorial information provided by DB-Engines
NameCassandra  Xexclude from comparisonFirebase Realtime Database  Xexclude from comparisonOracle Coherence  Xexclude from comparison
DescriptionWide-column store based on ideas of BigTable and DynamoDB infoOptimized for write accessCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Oracles in-memory data grid solution
Primary database modelWide column storeDocument storeKey-value store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score125.21
Rank#10  Overall
#1  Wide column stores
Score11.64
Rank#41  Overall
#7  Document stores
Score3.34
Rank#85  Overall
#16  Key-value stores
Websitecassandra.apache.orgfirebase.google.com/­products/­realtime-databasewww.oracle.com/­technetwork/­middleware/­coherence/­overview/­index.html
Technical documentationcassandra.apache.org/­doc/­latestfirebase.google.com/­docs/­databasewww.oracle.com/­technetwork/­middleware/­coherence/­documentation/­index.html
DeveloperApache Software Foundation infoApache top level project, originally developped by FacebookGoogle infoacquired by Google 2014Oracle
Initial release200820122007
Current release3.11.4, February 201912c, September 2016
License infoCommercial or Open SourceOpen Source infoApache version 2commercialcommercial
Cloud-based only infoOnly available as a cloud servicenoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaJava
Server operating systemsBSD
Linux
OS X
Windows
hostedAll 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.nonono
Secondary indexesrestricted infoonly equality queries, not always the best performing solutionyesno
SQL infoSupport of SQLSQL-like SELECT, DML and DDL statements (CQL)nono
APIs and other access methodsProprietary protocol infoCQL (Cassandra Query Language, an SQL-like language)
Thrift
Android
iOS
JavaScript API
RESTful HTTP API
JCache
JPA
RESTful HTTP API
Supported programming languagesC#
C++
Clojure
Erlang
Go
Haskell
Java
JavaScript infoNode.js
Perl
PHP
Python
Ruby
Scala
Java
JavaScript
Objective-C
.Net
C++
Java
Server-side scripts infoStored proceduresnolimited functionality with using 'rules'no
TriggersyesCallbacks are triggered when data changesyes infoLive Events
Partitioning methods infoMethods for storing different data on different nodesSharding infono "single point of failure"Sharding
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factor infoRepresentation of geographical distribution of servers is possibleyes, 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 infocan be individually decided for each write operation
Eventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Eventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datano infoAtomicity and isolation are supported for single operationsyesconfigurable
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 controlAccess rights for users can be defined per objectyes, based on authentication and database rulesauthentification to access the cache via certificates or http basic authentication
More information provided by the system vendor
CassandraFirebase Realtime DatabaseOracle Coherence
Specific characteristicsApache Cassandra is the leading NoSQL, distributed database management system, well...
» more
Competitive advantagesNo single point of failure ensures 100% availability . Operational simplicity for...
» more
Typical application scenariosInternet of Things (IOT), fraud detection applications, recommendation engines, product...
» more
Key customersApple, Netflix, Uber, ING,, Intuit,Fidelity, NY Times, Outbrain, BazaarVoice, Best...
» more
Market metricsCassandra is used by 40% of the Fortune 100.
» more
Licensing and pricing modelsApache license  Pricing for commercial distributions provided by DataStax and available...
» more

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Related products and services
3rd partiesCData: Connect to Big Data & NoSQL through standard Drivers.
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Instaclustr: Fully Hosted and Managed Apache Cassandra
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DataStax Enterprise: Apache Cassandra for enterprises.
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More resources
CassandraFirebase Realtime DatabaseOracle Coherence
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