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DBMS > OpenQM vs. PouchDB vs. Sequoiadb vs. YottaDB

System Properties Comparison OpenQM vs. PouchDB vs. Sequoiadb vs. YottaDB

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Editorial information provided by DB-Engines
NameOpenQM infoalso called QM  Xexclude from comparisonPouchDB  Xexclude from comparisonSequoiadb  Xexclude from comparisonYottaDB  Xexclude from comparison
DescriptionQpenQM is a high-performance, self-tuning, multi-value DBMSJavaScript DBMS with an API inspired by CouchDBNewSQL database with distributed OLTP and SQLA fast and solid embedded Key-value store
Primary database modelMultivalue DBMSDocument storeDocument store
Relational DBMS
Key-value store
Secondary database modelsRelational DBMS infousing the Octo plugin
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.34
Rank#284  Overall
#10  Multivalue DBMS
Score2.34
Rank#112  Overall
#21  Document stores
Score0.50
Rank#258  Overall
#41  Document stores
#120  Relational DBMS
Score0.28
Rank#306  Overall
#44  Key-value stores
Websitewww.rocketsoftware.com/­products/­rocket-multivalue-application-development-platform/­rocket-open-qmpouchdb.comwww.sequoiadb.comyottadb.com
Technical documentationpouchdb.com/­guideswww.sequoiadb.com/­en/­index.php?m=Files&a=indexyottadb.com/­resources/­documentation
DeveloperRocket Software, originally Martin PhillipsApache Software FoundationSequoiadb Ltd.YottaDB, LLC
Initial release1993201220132001
Current release3.4-127.1.1, June 2019
License infoCommercial or Open SourceOpen Source infoGPLv2, extended commercial license availableOpen SourceOpen Source infoServer: AGPL; Client: Apache V2Open Source infoAGPL 3.0
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptC++C
Server operating systemsAIX
FreeBSD
Linux
macOS
Raspberry Pi
Solaris
Windows
server-less, requires a JavaScript environment (browser, Node.js)LinuxDocker
Linux
Data schemeyes infowith some exceptionsschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenoyes infooid, date, timestamp, binary, regexno
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.yesnonono
Secondary indexesyesyes infovia viewsyesno
SQL infoSupport of SQLnonoSQL-like query languageby using the Octo plugin
APIs and other access methodsHTTP REST infoonly for PouchDB Server
JavaScript API
proprietary protocol using JSONPostgreSQL wire protocol infousing the Octo plugin
Proprietary protocol
Supported programming languages.Net
Basic
C
Java
Objective C
PHP
Python
JavaScript.Net
C++
Java
PHP
Python
C
Go
JavaScript (Node.js)
Lua
M
Perl
Python
Rust
Server-side scripts infoStored proceduresyesView functions in JavaScriptJavaScript
Triggersyesyesno
Partitioning methods infoMethods for storing different data on different nodesyesSharding infowith a proxy-based framework, named couchdb-loungeSharding
Replication methods infoMethods for redundantly storing data on multiple nodesyesMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
Source-replica replicationyes
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemImmediate ConsistencyEventual ConsistencyEventual Consistency
Foreign keys infoReferential integritynonono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnoDocument is locked during a transactionoptimistic locking
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyesyes infoby using IndexedDB, WebSQL or LevelDB as backendyesyes
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesnoyes
User concepts infoAccess controlAccess rights can be defined down to the item levelnosimple password-based access controlUsers and groups based on OS-security mechanisms

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More resources
OpenQM infoalso called QMPouchDBSequoiadbYottaDB
DB-Engines blog posts

New kids on the block: database management systems implemented in JavaScript
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