</li>

</ul>

<h1>NoSQL Data Stores</h1>

storage representations.</p>

<ol>

<li>Key-value pair</li>

<li>Graph</li>

</ol>

<p>These persistent data storage representations are commonly used to augment,

persistence type used by the NoSQL database often gives it different

performance characteristics than a relational database, with better results

on some types of read/writes and worse performance on others.</p>

<h3>Key-value pair data stores</h3>

<ul>

<li>

store. Redis is often called "the Swiss Army Knife of web application

for faster access than a traditional relational database, among many other

use cases. <a href="https://github.com/andymccurdy/redis-py">Redis-py</a> is a solid

Python client to use with Redis.</p>

is a guide for getting up with the extremely useful in-memory data store.</p>

</li>

<li>

<a href="https://www.youtube.com/watch?v=rP9EKvWt0zo">Scaling Redis at Twitter</a> is

a detailed look behind the scenes with a massive Redis deployment.</p>

</li>

<li>

<p>Redis, just as with any relational or NoSQL database, needs to be secured

based on <a href="http://www.antirez.com/news/96">security guidelines</a>. There is

<a href="http://www.antirez.com/news/96">cracks its security</a> to show the tradeoffs

purposely made between ease of use and security in the default settings.</p>

</li>

<li>

<p><a href="https://www.isredisallsafe.com/">Is your Redis server safe?</a> is a tool

<a href="http://www.antirez.com/news/96">a few things about Redis security</a>.</p>

</li>

</ul>

<h2>Document-oriented</h2>

<p>A document-oriented database provides a semi-structured representation for

<h3>Document-oriented data stores</h3>

<ul>

<li>

<a href="http://docs.mongodb.org/ecosystem/drivers/python/">PyMongo</a> is a

instances through Python code. <a href="http://mongoengine.org/">MongoEngine</a>

is a Python ORM specifically written for MongoDB that is built on top

of PyMongo.</p>

</li>

<li>

<p><a href="http://couchdb.apache.org/">Apache CouchDB</a> is also an open source project

stored JSON data.</p>

</li>

</ul>

<h3>Document-oriented data store resources</h3>

<ul>

<li>

is a guide about using non-relational databases in green field environments.</p>

</li>

<li>

</ol>

</li>

<li>

Python driver for MongoDB.</p>

</li>

<li>

shows some potential pitfalls of relying on technologies where you do

not fully understand how they operate.</p>

</li>

</ul>

<h2>Column-family table</h2>

<p>A column-family table class of NoSQL data stores builds on the key-value

</ul>

<h2>Graph</h2>

<p>A graph database represents and stores data in three aspects: nodes, edges

representing a person could have a property of "female" or "male".</p>

<h3>Graph data stores</h3>

<ul>

<li>

databases and runs on the Java Virtual Machine stack.</p>

</li>

<li>

<h3>Graph data store resources</h3>

<ul>

<li><a href="http://www.slideshare.net/maxdemarzi/introduction-to-graph-databases-12735789">Introduction to Graph Databases</a>

data store types.</li>

</ul>

<h2>NoSQL third-party services</h2>

<li>

<p><a href="http://www.thoughtworks.com/insights/blog/nosql-databases-overview">NoSQL databases: an overview</a>

explains what NoSQL means, how data is stored differently than in

Partition-Tolerance (CAP) Theorem means.</p>

</li>

<li>

</li>

<li>

<p>The <a href="http://blog.thislongrun.com/2015/03/the-cap-theorem-series.html">CAP Theorem series</a>

versus CA and high availability in large scale deployments.</p>

</li>

<li>

non-relational data stores.</p>

</li>

<li>

<li>

<p>Relational databases such as MySQL and PostgreSQL have added features in

more recent versions that mimic some of the capabilities of NoSQL data

<a href="http://engineering.wix.com/2015/12/10/scaling-to-100m-mysql-is-a-better-nosql/">using MySQL as a key-value pair store</a>

and this post on

<a href="https://blog.codeship.com/unleash-the-power-of-storing-json-in-postgres/">storing JSON data in PostgreSQL</a>.</p>

<h2>NoSQL data stores learning checklist</h2>

<ol>

<li>

scale so they may not be applicable to your web application.</p>

</li>

<li>

basis.</p>

</li>

<li>

document-oriented data store such as MongoDB.</p>

</li>

</ol>