====== NoSQL ======
  * Not Only SQL
  * [[http://www.codeproject.com/Articles/630103/A-Beginners-Guide-to-NoSQL|A Beginner's Guide to NoSQL]]

====== 참조 ======
  * [[https://dzone.com/storage/assets/1086520-mongodb-vs-couchbase-architecture-wp.pdf|MongoDB vs CouchBase 아키텍쳐 비교.pdf]]