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System Properties Comparison CouchDB vs. PouchDB

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Editorial information provided by DB-Engines

Name

Description

A native JSON - document store inspired by Lotus Notes, scalable from globally distributed server-clusters down to mobile phones.

JavaScript DBMS with an API inspired by CouchDB

Primary database model

Document store

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	18.44
Rank	#30	Overall
	#5	Document stores

Score	2.34
Rank	#80	Overall
	#15	Document stores

Website

couchdb.apache.org

pouchdb.com

Technical documentation

wiki.apache.org/couchdb

pouchdb.com/guides

Developer

Apache Software Foundation info

Apache top-level project, originally developed by Damien Katz, a former Lotus Notes developer

Apache Software Foundation

Initial release

2005

2012

Current release

2.1.2, July 2018

License

Commercial or Open Source

Open Source info

Apache version 2

Open Source

Cloud-based info

Only available as a cloud service

Implementation language

Erlang

JavaScript

Server operating systems

Android
BSD
Linux
OS X
Solaris
Windows

server-less, requires a JavaScript environment (browser, Node.js)

Data scheme

schema-free

Typing

predefined data types such as float or date

XML support info

Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.

Secondary indexes

yes

via views

yes

via views

SQL

Support of SQL

APIs and other access methods

RESTful HTTP/JSON API

HTTP REST

only for PouchDB Server
JavaScript API

Supported programming languages

C
C#
ColdFusion
Erlang
Haskell
Java
JavaScript
Lisp
Lua
Objective-C
OCaml
Perl
PHP
PL/SQL
Python
Ruby
Smalltalk

JavaScript

Server-side scripts info

Stored procedures

View functions in JavaScript

Triggers

yes

Partitioning methods info

Methods for storing different data on different nodes

Sharding

improved architecture with release 2.0

Sharding

with a proxy-based framework, named couchdb-lounge

Replication methods info

Methods for redundantly storing data on multiple nodes

Master-master replication
Master-slave replication

Master-master replication info

also with CouchDB databases
Master-slave replication info

also with CouchDB databases

MapReduce

Offers an API for user-defined Map/Reduce methods

yes

Consistency concepts info

Methods to ensure consistency in a distributed system

Eventual Consistency

Foreign keys info

Referential integrity

Transaction concepts info

Support to ensure data integrity after non-atomic manipulations of data

atomic operations within a single document possible

Concurrency info

Support for concurrent manipulation of data

yes

strategy: optimistic locking

Durability info

Support for making data persistent

yes

by using IndexedDB, WebSQL or LevelDB as backend

In-memory capabilities info

Is there an option to define some or all structures to be held in-memory only.

yes

User concepts info

Access control

Access rights for users can be defined per database

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System Properties Comparison CouchDB vs. PouchDB

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