Channels ▼

NoSQL Options Compared

Dr. Dobb's, March 19, 2013 A Developer's Look at the Primary NoSQL Options
  • E-mail
  • Print
  • ShareShare

CouchDB

Developer: Damien Katz, formerly of Lotus Notes
License Type: Apache Open Source
Operating System: Linux, Mac OS X, Windows
Implementation Language: Erlang
Initial Release: 2005

A pure open-source product, CouchDB is a mainstream NoSQL database that, like many of the other products here, uses JSON documents as its primary storage entity. CouchDB stores metadata about updates and data currency in the document itself, leaving the task of resolving updates to the application (which generally consists of merging changes into one document and discarding the other). This model enables CouchDB to avoid locking during writes — a feature that permits it to handle a large number of concurrent writers, without difficulty. CouchDB is one of the few products that offers master-master replication, which facilitates multisite deployments.

CouchDB uses JavaScript as its query language.


INFO-LINK




Currently we allow the following HTML tags in comments:

Single tags

These tags can be used alone and don't need an ending tag.

<br> Defines a single line break

<hr> Defines a horizontal line

Matching tags

These require an ending tag - e.g. <i>italic text</i>

<a> Defines an anchor

<b> Defines bold text

<big> Defines big text

<blockquote> Defines a long quotation

<caption> Defines a table caption

<cite> Defines a citation

<code> Defines computer code text

<em> Defines emphasized text

<fieldset> Defines a border around elements in a form

<h1> This is heading 1

<h2> This is heading 2

<h3> This is heading 3

<h4> This is heading 4

<h5> This is heading 5

<h6> This is heading 6

<i> Defines italic text

<p> Defines a paragraph

<pre> Defines preformatted text

<q> Defines a short quotation

<samp> Defines sample computer code text

<small> Defines small text

<span> Defines a section in a document

<s> Defines strikethrough text

<strike> Defines strikethrough text

<strong> Defines strong text

<sub> Defines subscripted text

<sup> Defines superscripted text

<u> Defines underlined text

Dr. Dobb's encourages readers to engage in spirited, healthy debate, including taking us to task. However, Dr. Dobb's moderates all comments posted to our site, and reserves the right to modify or remove any content that it determines to be derogatory, offensive, inflammatory, vulgar, irrelevant/off-topic, racist or obvious marketing or spam. Dr. Dobb's further reserves the right to disable the profile of any commenter participating in said activities.

 
Disqus Tips To upload an avatar photo, first complete your Disqus profile. | View the list of supported HTML tags you can use to style comments. | Please read our commenting policy.