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DBMS > FatDB vs. OpenQM vs. Oracle Rdb vs. SpatiaLite

System Properties Comparison FatDB vs. OpenQM vs. Oracle Rdb vs. SpatiaLite

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Editorial information provided by DB-Engines
NameFatDB  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonOracle Rdb  Xexclude from comparisonSpatiaLite  Xexclude from comparison
FatDB/FatCloud has ceased operations as a company with February 2014. FatDB is discontinued and excluded from the ranking.
DescriptionA .NET NoSQL DBMS that can integrate with and extend SQL Server.QpenQM is a high-performance, self-tuning, multi-value DBMSSpatial extension of SQLite
Primary database modelDocument store
Key-value store
Multivalue DBMSRelational DBMSSpatial DBMS
Secondary database modelsRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.33
Rank#286  Overall
#10  Multivalue DBMS
Score1.08
Rank#187  Overall
#85  Relational DBMS
Score1.72
Rank#149  Overall
#3  Spatial DBMS
Websitewww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmwww.oracle.com/­database/­technologies/­related/­rdb.htmlwww.gaia-gis.it/­fossil/­libspatialite/­index
Technical documentationwww.oracle.com/­database/­technologies/­related/­rdb-doc.htmlwww.gaia-gis.it/­gaia-sins/­spatialite_topics.html
DeveloperFatCloudRocket Software, originally Martin PhillipsOracle, originally developed by Digital Equipment Corporation (DEC)Alessandro Furieri
Initial release2012199319842008
Current release3.4-127.4.1.1, 20215.0.0, August 2020
License infoCommercial or Open SourcecommercialOpen Source infoGPLv2, extended commercial license availablecommercialOpen Source infoMPL 1.1, GPL v2.0 or LGPL v2.1
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageC#C++
Server operating systemsWindowsAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
HP Open VMSserver-less
Data schemeschema-freeyes infowith some exceptionsFlexible Schema (defined schema, partial schema, schema free)yes
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.yesnono
Secondary indexesyesyesyesyes
SQL infoSupport of SQLno infoVia inetgration in SQL Servernoyesyes
APIs and other access methods.NET Client API
LINQ
RESTful HTTP API
RPC
Windows WCF Bindings
Supported programming languagesC#.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresyes infovia applicationsyesno
Triggersyes infovia applicationsyesyes
Partitioning methods infoMethods for storing different data on different nodesShardingyesnone
Replication methods infoMethods for redundantly storing data on multiple nodesselectable replication factoryesnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnonono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Immediate Consistency
Immediate ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonoyesyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDyes, on a single nodeACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentyesyesyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.noyes
User concepts infoAccess controlno infoCan implement custom security layer via applicationsAccess rights can be defined down to the item levelno

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More resources
FatDBOpenQM infoalso called QMOracle RdbSpatiaLite
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