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DBMS > Firebase Realtime Database vs. IBM Db2 warehouse vs. TerminusDB vs. VelocityDB vs. Yanza

System Properties Comparison Firebase Realtime Database vs. IBM Db2 warehouse vs. TerminusDB vs. VelocityDB vs. Yanza

Editorial information provided by DB-Engines
NameFirebase Realtime Database  Xexclude from comparisonIBM Db2 warehouse infoformerly named IBM dashDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparisonVelocityDB  Xexclude from comparisonYanza  Xexclude from comparison
Yanza seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionCloud-hosted realtime document store. iOS, Android, and JavaScript clients share one Realtime Database instance and automatically receive updates with the newest data.Cloud-based data warehousing serviceScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)Time Series DBMS for IoT Applications
Primary database modelDocument storeRelational DBMSGraph DBMSGraph DBMS
Object oriented DBMS
Time Series DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score13.64
Rank#39  Overall
#6  Document stores
Score1.37
Rank#160  Overall
#74  Relational DBMS
Score0.23
Rank#316  Overall
#27  Graph DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitefirebase.google.com/­products/­realtime-databasewww.ibm.com/­products/­db2/­warehouseterminusdb.comvelocitydb.comyanza.com
Technical documentationfirebase.google.com/­docs/­databaseterminusdb.github.io/­terminusdb/­#velocitydb.com/­UserGuide
DeveloperGoogle infoacquired by Google 2014IBMDataChemist Ltd.VelocityDB IncYanza
Initial release20122014201820112015
Current release11.0.0, January 20237.x
License infoCommercial or Open SourcecommercialcommercialOpen Source infoGPL V3commercialcommercial infofree version available
Cloud-based only infoOnly available as a cloud serviceyesyesnonono infobut mainly used as a service provided by Yanza
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageProlog, RustC#
Server operating systemshostedhostedLinuxAny that supports .NETWindows
Data schemeschema-freeyesyesyesschema-free
Typing infopredefined data types such as float or dateyesyesyesyesno
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/export of XML data possiblenonono
Secondary indexesyesyesyesno
SQL infoSupport of SQLnoyesSQL-like query language (WOQL)nono
APIs and other access methodsAndroid
iOS
JavaScript API
RESTful HTTP API
.NET Client API
JDBC
ODBC
OLE DB
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
.NetHTTP API
Supported programming languagesJava
JavaScript
Objective-C
Java
JavaScript (Node.js)
Perl
PHP
Python
R
Ruby
JavaScript
Python
.Netany language that supports HTTP calls
Server-side scripts infoStored procedureslimited functionality with using 'rules'PL/SQL, SQL PLyesnono
TriggersCallbacks are triggered when data changesyesyesCallbacks are triggered when data changesyes infoTimer and event based
Partitioning methods infoMethods for storing different data on different nodesShardingGraph PartitioningShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesyesJournaling Streamsnone
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
Immediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynoyesyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDACIDACIDno
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyes infoin-memory journalingyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyes
User concepts infoAccess controlyes, based on authentication and database rulesfine grained access rights according to SQL-standardRole-based access controlBased on Windows Authenticationno

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More resources
Firebase Realtime DatabaseIBM Db2 warehouse infoformerly named IBM dashDBTerminusDB infoformer name was DataChemistVelocityDBYanza
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