NoSQL

NoSQL refers to a class of databases (and data stores) that either don’t require a formal schema or are distinctly different from relational databases.

Popular databases that are considered part of the NoSQL generation:

• CouchDB
• MongoDB
• BigTable
• SimpleDB
• Hadoop

Also see the Key-value Store topic.

Related Articles

• A closer look at Redis — November 8, 2011
  Getting to know the Redis key-value store
• Seven databases in seven weeks — December 1, 2011
  Take some time to explore seven different databases
• PostgreSQL as a key-value store — December 13, 2011
  If you're tempted by one of the key-value store databases that are super popular maybe you should take a look at PostgreSQL's hstore