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DBMS > PouchDB vs. SwayDB vs. ToroDB vs. XTDB

System Properties Comparison PouchDB vs. SwayDB vs. ToroDB vs. XTDB

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Editorial information provided by DB-Engines
NamePouchDB  Xexclude from comparisonSwayDB  Xexclude from comparisonToroDB  Xexclude from comparisonXTDB infoformerly named Crux  Xexclude from comparison
ToroDB seems to be discontinued. Therefore it is excluded from the DB-Engines Ranking.
DescriptionJavaScript DBMS with an API inspired by CouchDBAn embeddable, non-blocking, type-safe key-value store for single or multiple disks and in-memory storageA MongoDB-compatible JSON document store, built on top of PostgreSQLA general purpose database with bitemporal SQL and Datalog and graph queries
Primary database modelDocument storeKey-value storeDocument storeDocument store
DB-Engines Ranking infomeasures the popularity of database management systemsranking trend
Trend Chart
Score2.28
Rank#115  Overall
#21  Document stores
Score0.00
Rank#382  Overall
#59  Key-value stores
Score0.11
Rank#343  Overall
#46  Document stores
Websitepouchdb.comswaydb.simer.augithub.com/­torodb/­servergithub.com/­xtdb/­xtdb
www.xtdb.com
Technical documentationpouchdb.com/­guideswww.xtdb.com/­docs
DeveloperApache Software FoundationSimer Plaha8KdataJuxt Ltd.
Initial release2012201820162019
Current release7.1.1, June 20191.19, September 2021
License infoCommercial or Open SourceOpen SourceOpen Source infoGNU Affero GPL V3.0Open Source infoAGPL-V3Open Source infoMIT License
Cloud-based only infoOnly available as a cloud servicenononono
DBaaS offerings (sponsored links) infoDatabase as a Service

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Implementation languageJavaScriptScalaJavaClojure
Server operating systemsserver-less, requires a JavaScript environment (browser, Node.js)All OS with a Java 7 VMAll OS with a Java 8 (and higher) VM
Linux
Data schemeschema-freeschema-freeschema-freeschema-free
Typing infopredefined data types such as float or datenonoyes infostring, integer, double, boolean, date, object_idyes, 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 viewsnoyes
SQL infoSupport of SQLnonolimited SQL, making use of Apache Calcite
APIs and other access methodsHTTP REST infoonly for PouchDB Server
JavaScript API
HTTP REST
JDBC
Supported programming languagesJavaScriptJava
Kotlin
Scala
Clojure
Java
Server-side scripts infoStored proceduresView functions in JavaScriptnono
Triggersyesnonono
Partitioning methods infoMethods for storing different data on different nodesSharding infowith a proxy-based framework, named couchdb-loungenoneShardingnone
Replication methods infoMethods for redundantly storing data on multiple nodesMulti-source replication infoalso with CouchDB databases
Source-replica replication infoalso with CouchDB databases
noneSource-replica replicationyes, each node contains all data
MapReduce infoOffers an API for user-defined Map/Reduce methodsyesnono
Consistency concepts infoMethods to ensure consistency in a distributed systemEventual ConsistencyImmediate ConsistencyEventual Consistency
Immediate Consistency
Foreign keys infoReferential integritynononono
Transaction concepts infoSupport to ensure data integrity after non-atomic manipulations of datanoAtomic execution of operationsnoACID
Concurrency infoSupport for concurrent manipulation of datayesyesyes
Durability infoSupport for making data persistentyes infoby using IndexedDB, WebSQL or LevelDB as backendyesyesyes, 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.yesyes
User concepts infoAccess controlnonoAccess rights for users and roles

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More resources
PouchDBSwayDBToroDBXTDB 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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Recent citations in the news

Building an Offline First App with PouchDB — SitePoint
10 March 2014, SitePoint

Getting Started with PouchDB Client-Side JavaScript Database — SitePoint
7 September 2016, SitePoint

3 Reasons To Think Offline First
22 March 2017, IBM

Offline-first web and mobile apps: Top frameworks and components
22 January 2019, TechBeacon

Create Offline Web Apps Using Service Workers & PouchDB — SitePoint
7 March 2017, SitePoint

provided by Google News



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