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DBMS > Cachelot.io vs. IBM Cloudant vs. OpenQM

System Properties Comparison Cachelot.io vs. IBM Cloudant vs. OpenQM

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Editorial information provided by DB-Engines
NameCachelot.io  Xexclude from comparisonIBM Cloudant  Xexclude from comparisonOpenQM infoalso called QM  Xexclude from comparison
DescriptionIn-memory caching systemDatabase as a Service offering based on Apache CouchDBQpenQM is a high-performance, self-tuning, multi-value DBMS
Primary database modelKey-value storeDocument storeMultivalue DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.00
Rank#396  Overall
#64  Key-value stores
Score2.73
Rank#108  Overall
#20  Document stores
Score0.33
Rank#286  Overall
#10  Multivalue DBMS
Websitecachelot.iowww.ibm.com/­products/­cloudantwww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qm
Technical documentationcloud.ibm.com/­docs/­Cloudant
DeveloperIBM, Apache Software Foundation infoIBM acquired Cloudant in February 2014Rocket Software, originally Martin Phillips
Initial release201520101993
Current release3.4-12
License infoCommercial or Open SourceOpen Source infoSimplified BSD LicensecommercialOpen Source infoGPLv2, extended commercial license available
Cloud-based only infoOnly available as a cloud servicenoyesno
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageC++Erlang
Server operating systemsFreeBSD
Linux
OS X
hostedAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
Data schemeschema-freeschema-freeyes infowith some exceptions
Typing infopredefined data types such as float or datenono
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.nonoyes
Secondary indexesnoyesyes
SQL infoSupport of SQLnonono
APIs and other access methodsMemcached protocolRESTful HTTP/JSON API
Supported programming languages.Net
C
C++
ColdFusion
Erlang
Java
Lisp
Lua
OCaml
OCaml
Perl
PHP
Python
Ruby
C#
Java
JavaScript
Objective-C
PHP
Ruby
.Net
Basic
C
Java
Objective C
PHP
Python
Server-side scripts infoStored proceduresnoView functions (Map-Reduce) in JavaScriptyes
Triggersnoyesyes
Partitioning methods infoMethods for storing different data on different nodesnoneShardingyes
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replication
Source-replica replication
yes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesno
Consistency concepts infoMethods to ensure consistency in a distributed systemnoneEventual ConsistencyImmediate Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanono infoatomic operations within a document possibleACID
Concurrency infoSupport for concurrent manipulation of datayesyes infoOptimistic lockingyes
Durability infoSupport for making data persistentnoyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.nono
User concepts infoAccess controlnoAccess rights for users can be defined per databaseAccess rights can be defined down to the item level

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More resources
Cachelot.ioIBM CloudantOpenQM infoalso called QM
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