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DBMS > DataFS vs. GeoSpock vs. Memcached vs. OpenQM vs. Oracle Rdb

System Properties Comparison DataFS vs. GeoSpock vs. Memcached vs. OpenQM vs. Oracle Rdb

Editorial information provided by DB-Engines
NameDataFS  Xexclude from comparisonGeoSpock  Xexclude from comparisonMemcached  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonOracle Rdb  Xexclude from comparison
GeoSpock seems to be discontinued. Therefore it will be excluded from the DB-Engines ranking.
DescriptionAll data is stored inside objects which are linked by so-called link attributes. Objects consist of classes which can be extended and de-extended at runtime. Graphs can be defined with a struct.Spatial and temporal data processing engine for extreme data scaleIn-memory key-value store, originally intended for cachingQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelObject oriented DBMSRelational DBMSKey-value storeMultivalue DBMSRelational DBMS
Secondary database modelsGraph DBMSTime Series DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.09
Rank#360  Overall
#17  Object oriented DBMS
Score18.08
Rank#32  Overall
#4  Key-value stores
Score0.34
Rank#284  Overall
#10  Multivalue DBMS
Score1.14
Rank#178  Overall
#80  Relational DBMS
Websitenewdatabase.comgeospock.comwww.memcached.orgwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmwww.oracle.com/­database/­technologies/­related/­rdb.html
Technical documentationdev.mobiland.com/­Overview.xspgithub.com/­memcached/­memcached/­wikiwww.oracle.com/­database/­technologies/­related/­rdb-doc.html
DeveloperMobiland AGGeoSpockDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalRocket Software, originally Martin PhillipsOracle, originally developed by Digital Equipment Corporation (DEC)
Initial release2018200319931984
Current release1.1.263, October 20222.0, September 20191.6.27, May 20243.4-127.4.1.1, 2021
License infoCommercial or Open SourcecommercialcommercialOpen Source infoBSD licenseOpen Source infoGPLv2, extended commercial license availablecommercial
Cloud-based only infoOnly available as a cloud servicenoyesnonono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJava, JavascriptC
Server operating systemsWindowshostedFreeBSD
Linux
OS X
Unix
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
HP Open VMS
Data schemeClasses, Structs, and Lists are written in proprietary DataTypeDefinitionLanguage (.dtdl) and Objects consisting of those are written in proprietary DataAccessDefinitionLanguage (.dadl)yesschema-freeyes infowith some exceptionsFlexible Schema (defined schema, partial schema, schema free)
Typing infopredefined data types such as float or dateyesyesnoyes
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 indexesnotemporal, categoricalnoyesyes
SQL infoSupport of SQLnoANSI SQL for query only (using Presto)nonoyes
APIs and other access methods.NET Client API
Proprietary client DLL
WinRT client
JDBCProprietary protocol
Supported programming languages.Net
C
C#
C++
VB.Net
.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresnonoyes
Triggersno, except callback-events from server when changes happenednonoyes
Partitioning methods infoMethods for storing different data on different nodesProprietary Sharding systemAutomatic shardingnoneyes
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnonononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyImmediate ConsistencyImmediate ConsistencyImmediate Consistency
Foreign keys infoReferential integrityyesnononoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnonoACIDyes, on a single node
Concurrency infoSupport for concurrent manipulation of datayesyesyesyesyes
Durability infoSupport for making data persistentyesyesnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nonono
User concepts infoAccess controlWindows-ProfileAccess rights for users can be defined per tableyes infousing SASL (Simple Authentication and Security Layer) protocolAccess rights can be defined down to the item level

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More resources
DataFSGeoSpockMemcachedOpenQM infoalso called QMOracle Rdb
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