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DBMS > Firebase Realtime Database vs. IBM Db2 vs. JaguarDB vs. searchxml vs. SQL.JS

System Properties Comparison Firebase Realtime Database vs. IBM Db2 vs. JaguarDB vs. searchxml vs. SQL.JS

Editorial information provided by DB-Engines
NameFirebase Realtime Database  Xexclude from comparisonIBM Db2 infoformerly named DB2 or IBM Database 2  Xexclude from comparisonJaguarDB  Xexclude from comparisonsearchxml  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Common in IBM host environments, 2 different versions for host and Windows/LinuxPerformant, highly scalable DBMS for AI and IoT applicationsDBMS for structured and unstructured content wrapped with an application serverPort of SQLite to JavaScript
Primary database modelDocument storeRelational DBMS infoSince Version 10.5 support for JSON/BSON documents compatible with MongoDBKey-value store
Vector DBMS
Native XML DBMS
Search engine
Relational DBMS
Secondary database modelsDocument store
RDF store infoin Db2 LUW (Linux, Unix, Windows)
Spatial DBMS infowith Db2 Spatial Extender
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score13.64
Rank#39  Overall
#6  Document stores
Score125.90
Rank#9  Overall
#6  Relational DBMS
Score0.06
Rank#381  Overall
#59  Key-value stores
#13  Vector DBMS
Score0.03
Rank#390  Overall
#7  Native XML DBMS
#24  Search engines
Score0.63
Rank#241  Overall
#112  Relational DBMS
Websitefirebase.google.com/­products/­realtime-databasewww.ibm.com/­products/­db2www.jaguardb.comwww.searchxml.net/­category/­productssql.js.org
Technical documentationfirebase.google.com/­docs/­databasewww.ibm.com/­docs/­en/­db2www.jaguardb.com/­support.htmlwww.searchxml.net/­support/­handoutssql.js.org/­documentation/­index.html
DeveloperGoogle infoacquired by Google 2014IBMDataJaguar, Inc.informationpartners gmbhAlon Zakai infoenhancements implemented by others
Initial release20121983 infohost version201520152012
Current release12.1, October 20163.3 July 20231.0
License infoCommercial or Open Sourcecommercialcommercial infofree version is availableOpen Source infoGPL V3.0commercialOpen Source
Cloud-based only infoOnly available as a cloud serviceyesnononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC and C++C++ infothe server part. Clients available in other languagesC++JavaScript
Server operating systemshostedAIX
HP-UX
Linux
Solaris
Windows
z/OS
LinuxWindowsserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeschema-freeyesyesschema-freeyes
Typing infopredefined data types such as float or dateyesyesyesyesyes
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.nonoyesno
Secondary indexesyesyesyesyes
SQL infoSupport of SQLnoyesA subset of ANSI SQL is implemented infobut no views, foreign keys, triggersnoyes infoSQL-92 is not fully supported
APIs and other access methodsAndroid
iOS
JavaScript API
RESTful HTTP API
ADO.NET
JDBC
JSON style queries infoMongoDB compatible
ODBC
XQuery
JDBC
ODBC
RESTful HTTP API
WebDAV
XQuery
XSLT
JavaScript API
Supported programming languagesJava
JavaScript
Objective-C
C
C#
C++
Cobol
Delphi
Fortran
Java
Perl
PHP
Python
Ruby
Visual Basic
C
C++
Go
Java
JavaScript (Node.js)
PHP
Python
Ruby
Scala
C++ infomost other programming languages supported via APIsJavaScript
Server-side scripts infoStored procedureslimited functionality with using 'rules'yesnoyes infoon the application serverno
TriggersCallbacks are triggered when data changesyesnonono
Partitioning methods infoMethods for storing different data on different nodesSharding infoonly with Windows/Unix/Linux VersionShardingnonenone
Replication methods infoMethods for redundantly storing data on multiple nodesyes infowith separate tools (MQ, InfoSphere)Multi-source replicationyes infosychronisation to multiple collectionsnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency infoif the client is offline
Immediate Consistency infoif the client is online
Eventual ConsistencyImmediate Consistencynone
Foreign keys infoReferential integritynoyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDnomultiple readers, single writerACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesno infoexcept by serializing a db to a file
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonoyes
User concepts infoAccess controlyes, based on authentication and database rulesfine grained access rights according to SQL-standardrights management via user accountsDomain, group and role-based access control at the document level and for application servicesno

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More resources
Firebase Realtime DatabaseIBM Db2 infoformerly named DB2 or IBM Database 2JaguarDBsearchxmlSQL.JS
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