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DBMS > PouchDB vs. SQL.JS vs. SwayDB vs. Vitess vs. XTDB

System Properties Comparison PouchDB vs. SQL.JS vs. SwayDB vs. Vitess vs. XTDB

Editorial information provided by DB-Engines
NamePouchDB  Xexclude from comparisonSQL.JS  Xexclude from comparisonSwayDB  Xexclude from comparisonVitess  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
DescriptionJavaScript DBMS with an API inspired by CouchDBPort of SQLite to JavaScriptAn embeddable, non-blocking, type-safe key-value store for single or multiple disks and in-memory storageScalable, distributed, cloud-native DBMS, extending MySQLA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument storeRelational DBMSKey-value storeRelational DBMSDocument store
Secondary database modelsDocument store
Spatial DBMS
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.34
Rank#112  Overall
#21  Document stores
Score0.63
Rank#241  Overall
#112  Relational DBMS
Score0.04
Rank#387  Overall
#61  Key-value stores
Score0.88
Rank#203  Overall
#95  Relational DBMS
Score0.18
Rank#332  Overall
#46  Document stores
Websitepouchdb.comsql.js.orgswaydb.simer.auvitess.iogithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationpouchdb.com/­guidessql.js.org/­documentation/­index.htmlvitess.io/­docswww.xtdb.com/­docs
DeveloperApache Software FoundationAlon Zakai infoenhancements implemented by othersSimer PlahaThe Linux Foundation, PlanetScaleJuxt Ltd.
Initial release20122012201820132019
Current release7.1.1, June 201915.0.2, December 20221.19, September 2021
License infoCommercial or Open SourceOpen SourceOpen SourceOpen Source infoGNU Affero GPL V3.0Open Source infoApache Version 2.0, commercial licenses availableOpen Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenonononono
DBaaS offerings (sponsored links) infoDatabase as a Service

Providers of DBaaS offerings, please contact us to be listed.
Implementation languageJavaScriptJavaScriptScalaGoClojure
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)server-less, requires a JavaScript environment (browser, Node.js)Docker
Linux
macOS
All OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeyesschema-freeyesschema-free
Typing infopredefined data types such as float or datenoyesnoyesyes, extensible-data-notation format
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.nononono
Secondary indexesyes infovia viewsnoyesyes
SQL infoSupport of SQLnoyes infoSQL-92 is not fully supportednoyes infowith proprietary extensionslimited SQL, making use of Apache Calcite
APIs and other access methodsHTTP REST infoonly for PouchDB Server
JavaScript API
JavaScript APIADO.NET
JDBC
MySQL protocol
ODBC
HTTP REST
JDBC
Supported programming languagesJavaScriptJavaScriptJava
Kotlin
Scala
Ada
C
C#
C++
D
Delphi
Eiffel
Erlang
Haskell
Java
JavaScript (Node.js)
Objective-C
OCaml
Perl
PHP
Python
Ruby
Scheme
Tcl
Clojure
Java
Server-side scripts infoStored proceduresView functions in JavaScriptnonoyes infoproprietary syntaxno
Triggersyesnonoyesno
Partitioning methods infoMethods for storing different data on different nodesSharding infowith a proxy-based framework, named couchdb-loungenonenoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
nonenoneMulti-source replication
Source-replica replication
yes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnononono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencynoneImmediate ConsistencyEventual Consistency across shards
Immediate Consistency within a shard
Foreign keys infoReferential integritynoyesnoyes infonot for MyISAM storage engineno
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoACIDAtomic execution of operationsACID at shard levelACID
Concurrency infoSupport for concurrent manipulation of datayesyes infotable locks or row locks depending on storage engineyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, WebSQL or LevelDB as backendno infoexcept by serializing a db to a fileyesyesyes, flexibel persistency by using storage technologies like Apache Kafka, RocksDB or LMDB
In-memory capabilities infoIs there an option to define some or all structures to be held in-memory only.yesyesyesyes
User concepts infoAccess controlnononoUsers with fine-grained authorization concept infono user groups or roles

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More resources
PouchDBSQL.JSSwayDBVitessXTDB infoformerly named Crux
DB-Engines blog posts

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

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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

Building an Offline First App with PouchDB — SitePoint
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Create Offline Web Apps Using Service Workers & PouchDB — SitePoint
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3 Reasons To Think Offline First
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Getting Started with PouchDB Client-Side JavaScript Database — SitePoint
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