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DBMS > Lovefield vs. PouchDB vs. Prometheus vs. SQL.JS

System Properties Comparison Lovefield vs. PouchDB vs. Prometheus vs. SQL.JS

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Editorial information provided by DB-Engines
NameLovefield  Xexclude from comparisonPouchDB  Xexclude from comparisonPrometheus  Xexclude from comparisonSQL.JS  Xexclude from comparison
DescriptionEmbeddable relational database for web apps written in pure JavaScriptJavaScript DBMS with an API inspired by CouchDBOpen-source Time Series DBMS and monitoring systemPort of SQLite to JavaScript
Primary database modelRelational DBMSDocument storeTime Series DBMSRelational DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score0.29
Rank#293  Overall
#133  Relational DBMS
Score2.28
Rank#115  Overall
#21  Document stores
Score8.42
Rank#47  Overall
#2  Time Series DBMS
Score0.53
Rank#252  Overall
#116  Relational DBMS
Websitegoogle.github.io/­lovefieldpouchdb.comprometheus.iosql.js.org
Technical documentationgithub.com/­google/­lovefield/­blob/­master/­docs/­spec_index.mdpouchdb.com/­guidesprometheus.io/­docssql.js.org/­documentation/­index.html
DeveloperGoogleApache Software FoundationAlon Zakai infoenhancements implemented by others
Initial release2014201220152012
Current release2.1.12, February 20177.1.1, June 2019
License infoCommercial or Open SourceOpen Source infoApache 2.0Open SourceOpen Source infoApache 2.0Open Source
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptJavaScriptGoJavaScript
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js) infotested with Chrome, Firefox, IE, Safariserver-less, requires a JavaScript environment (browser, Node.js)Linux
Windows
server-less, requires a JavaScript environment (browser, Node.js)
Data schemeyesschema-freeyesyes
Typing infopredefined data types such as float or dateyesnoNumeric data onlyyes
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.nonono infoImport of XML data possibleno
Secondary indexesyesyes infovia viewsno
SQL infoSupport of SQLSQL-like query language infovia JavaScript builder patternnonoyes infoSQL-92 is not fully supported
APIs and other access methodsHTTP REST infoonly for PouchDB Server
JavaScript API
RESTful HTTP/JSON APIJavaScript API
Supported programming languagesJavaScriptJavaScript.Net
C++
Go
Haskell
Java
JavaScript (Node.js)
Python
Ruby
JavaScript
Server-side scripts infoStored proceduresnoView functions in JavaScriptnono
TriggersUsing read-only observersyesnono
Partitioning methods infoMethods for storing different data on different nodesnoneSharding infowith a proxy-based framework, named couchdb-loungeShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesnoneMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
yes infoby Federationnone
MapReduce infoOffers an API for user-defined Map/Reduce methodsnoyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual Consistencynonenone
Foreign keys infoReferential integrityyesnonoyes
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of dataACIDnonoACID
Concurrency infoSupport for concurrent manipulation of datayesyes
Durability infoSupport for making data persistentyes, by using IndexedDB or the cloud service Firebase Realtime Databaseyes infoby using IndexedDB, WebSQL or LevelDB as backendyesno infoexcept by serializing a db to a file
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yes infousing MemoryDByesnoyes
User concepts infoAccess controlnononono

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More resources
LovefieldPouchDBPrometheusSQL.JS
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