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DBMS > Memcached vs. OpenQM vs. OrigoDB vs. TerminusDB

System Properties Comparison Memcached vs. OpenQM vs. OrigoDB vs. TerminusDB

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Editorial information provided by DB-Engines
NameMemcached  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparisonOrigoDB  Xexclude from comparisonTerminusDB infoformer name was DataChemist  Xexclude from comparison
DescriptionIn-memory key-value store, originally intended for cachingQpenQM is a high-performance, self-tuning, multi-value DBMSA fully ACID in-memory object graph databaseScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationships
Primary database modelKey-value storeMultivalue DBMSDocument store
Object oriented DBMS
Graph DBMS
Secondary database modelsDocument store
RDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score20.81
Rank#32  Overall
#4  Key-value stores
Score0.38
Rank#278  Overall
#10  Multivalue DBMS
Score0.06
Rank#379  Overall
#51  Document stores
#18  Object oriented DBMS
Score0.23
Rank#323  Overall
#28  Graph DBMS
Websitewww.memcached.orgwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmorigodb.comterminusdb.com
Technical documentationgithub.com/­memcached/­memcached/­wikiorigodb.com/­docsterminusdb.github.io/­terminusdb/­#
DeveloperDanga Interactive infooriginally developed by Brad Fitzpatrick for LiveJournalRocket Software, originally Martin PhillipsRobert Friberg et alDataChemist Ltd.
Initial release200319932009 infounder the name LiveDB2018
Current release1.6.25, March 20243.4-1211.0.0, January 2023
License infoCommercial or Open SourceOpen Source infoBSD licenseOpen Source infoGPLv2, extended commercial license availableOpen SourceOpen Source infoGPL V3
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageCC#Prolog, Rust
Server operating systemsFreeBSD
Linux
OS X
Unix
Windows
AIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Linux
Windows
Linux
Data schemeschema-freeyes infowith some exceptionsyesyes
Typing infopredefined data types such as float or datenoUser defined using .NET types and collectionsyes
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.yesno infocan be achieved using .NETno
Secondary indexesnoyesyes
SQL infoSupport of SQLnononoSQL-like query language (WOQL)
APIs and other access methodsProprietary protocol.NET Client API
HTTP API
LINQ
OWL
RESTful HTTP API
WOQL (Web Object Query Language)
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
Perl
PHP
Python
Ruby
.Net
Basic
C
Java
Objective C
PHP
Python
.NetJavaScript
Python
Server-side scripts infoStored proceduresnoyesyesyes
Triggersnoyesyes infoDomain Eventsyes
Partitioning methods infoMethods for storing different data on different nodesnoneyeshorizontal partitioning infoclient side managed; servers are not synchronizedGraph Partitioning
Replication methods infoMethods for redundantly storing data on multiple nodesnone infoRepcached, a Memcached patch, provides this functionallityyesSource-replica replicationJournaling Streams
MapReduce infoOffers an API for user-defined Map/Reduce methodsnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate Consistency
Foreign keys infoReferential integritynonodepending on modelyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDACIDACID
Concurrency infoSupport for concurrent manipulation of datayesyesyesyes
Durability infoSupport for making data persistentnoyesyes infoWrite ahead logyes infoin-memory journaling
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlyes infousing SASL (Simple Authentication and Security Layer) protocolAccess rights can be defined down to the item levelRole based authorizationRole-based access control

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More resources
MemcachedOpenQM infoalso called QMOrigoDBTerminusDB infoformer name was DataChemist
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