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DBMS > DataChemist vs. PouchDB

System Properties Comparison DataChemist vs. PouchDB

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Editorial information provided by DB-Engines
NameDataChemist  Xexclude from comparisonPouchDB  Xexclude from comparison
DescriptionScalable Graph Database platform making enterprise data available by exploiting inferred entities and relationshipsJavaScript DBMS with an API inspired by CouchDB
Primary database modelGraph DBMSDocument store
Secondary database modelsRDF store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.07
Rank#305  Overall
#31  Graph DBMS
Score3.40
Rank#81  Overall
#15  Document stores
Websitewww.datachemist.compouchdb.com
Technical documentationwww.datachemist.com/­images/­uploads/­general/­Evolving_MeaningfulValuefromEnterpriseData.pdfpouchdb.com/­guides
DeveloperDataChemist Ltd.Apache Software Foundation
Initial release20182012
Current release1.0, 20187.1.1, June 2019
License infoCommercial or Open SourcecommercialOpen Source
Cloud-based only infoOnly available as a cloud servicenono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languagePrologJavaScript
Server operating systemsLinuxserver-less, requires a JavaScript environment (browser, Node.js)
Data schemeyesschema-free
Typing infopredefined data types such as float or dateyesno
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.nono
Secondary indexesyes infovia views
SQL infoSupport of SQLSQL-like query language (WOQL)no
APIs and other access methodsOWL
RESTful HTTP API
WOQL (DataChemist Query Language)
HTTP REST infoonly for PouchDB Server
JavaScript API
Supported programming languagesJavaScript
Python
JavaScript
Server-side scripts infoStored proceduresyesView functions in JavaScript
Triggersyesyes
Partitioning methods infoMethods for storing different data on different nodesGraph PartitioningSharding infowith a proxy-based framework, named couchdb-lounge
Replication methods infoMethods for redundantly storing data on multiple nodesJournaling StreamsMaster-master replication infoalso with CouchDB databases
Master-slave replication infoalso with CouchDB databases
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyes
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistency
Foreign keys infoReferential integrityyesno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDno
Concurrency infoSupport for concurrent manipulation of datayes
Durability infoSupport for making data persistentyes infoin-memory journalingyes infoby using IndexedDB, WebSQL or LevelDB as backend
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes
User concepts infoAccess controlRole-based access controlno

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More resources
DataChemistPouchDB
DB-Engines blog posts

New kids on the block: database management systems implemented in JavaScript
1 December 2014, Matthias Gelbmann

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Recent citations in the news

DataChemist wants to make sense of big-picture intelligence in the data analytics 'arms race'
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Dublin start-up chosen to work on global peace initiative
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Tánaiste Simon Coveney Launches DataChemist, Trinity College Dublin Technology Spin-out
28 August 2018, Irish Tech News

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