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DBMS > Firebase Realtime Database vs. OpenEdge vs. PostGIS vs. Prometheus vs. VelocityDB

System Properties Comparison Firebase Realtime Database vs. OpenEdge vs. PostGIS vs. Prometheus vs. VelocityDB

Editorial information provided by DB-Engines
NameFirebase Realtime Database  Xexclude from comparisonOpenEdge  Xexclude from comparisonPostGIS  Xexclude from comparisonPrometheus  Xexclude from comparisonVelocityDB  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.Application development environment with integrated database management systemSpatial extension of PostgreSQLOpen-source Time Series DBMS and monitoring systemA .NET Object Database that can be embedded/distributed and extended to a graph data model (VelocityGraph)
Primary database modelDocument storeRelational DBMSSpatial DBMSTime Series DBMSGraph DBMS
Object oriented DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score13.64
Rank#39  Overall
#6  Document stores
Score3.45
Rank#85  Overall
#46  Relational DBMS
Score21.72
Rank#29  Overall
#1  Spatial DBMS
Score7.69
Rank#50  Overall
#3  Time Series DBMS
Score0.11
Rank#354  Overall
#37  Graph DBMS
#15  Object oriented DBMS
Websitefirebase.google.com/­products/­realtime-databasewww.progress.com/­openedgepostgis.netprometheus.iovelocitydb.com
Technical documentationfirebase.google.com/­docs/­databasedocumentation.progress.com/­output/­ua/­OpenEdge_latestpostgis.net/­documentationprometheus.io/­docsvelocitydb.com/­UserGuide
DeveloperGoogle infoacquired by Google 2014Progress Software CorporationVelocityDB Inc
Initial release20121984200520152011
Current releaseOpenEdge 12.2, March 20203.4.2, February 20247.x
License infoCommercial or Open SourcecommercialcommercialOpen Source infoGPL v2.0Open Source infoApache 2.0commercial
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 languageCGoC#
Server operating systemshostedAIX
HP-UX
Linux
Solaris
Windows
Linux
Windows
Any that supports .NET
Data schemeschema-freeyesyesyesyes
Typing infopredefined data types such as float or dateyesyesyesNumeric data onlyyes
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.noyesyesno infoImport of XML data possibleno
Secondary indexesyesyesyesnoyes
SQL infoSupport of SQLnoyes infoclose to SQL 92yesnono
APIs and other access methodsAndroid
iOS
JavaScript API
RESTful HTTP API
JDBC
ODBC
RESTful HTTP/JSON API.Net
Supported programming languagesJava
JavaScript
Objective-C
Progress proprietary ABL (Advanced Business Language).Net
C++
Go
Haskell
Java
JavaScript (Node.js)
Python
Ruby
.Net
Server-side scripts infoStored procedureslimited functionality with using 'rules'yesuser defined functionsnono
TriggersCallbacks are triggered when data changesyesyesnoCallbacks are triggered when data changes
Partitioning methods infoMethods for storing different data on different nodeshorizontal partitioning infosince Version 11.4yes infobased on PostgreSQLShardingSharding
Replication methods infoMethods for redundantly storing data on multiple nodesSource-replica replicationyes infobased on PostgreSQLyes infoby Federation
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 ConsistencynoneImmediate Consistency
Foreign keys infoReferential integritynoyesyesnono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datayesACIDACIDnoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nononoyes
User concepts infoAccess controlyes, based on authentication and database rulesUsers and groupsyes infobased on PostgreSQLnoBased on Windows Authentication

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More resources
Firebase Realtime DatabaseOpenEdgePostGISPrometheusVelocityDB
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