This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big Data Analytics. What are key value databases? A key value database is a collection of paired ...

Most applications need some form of persistence—a way to store the data outside the application for safekeeping. The most basic way is to write data to the file system, but that can quickly become a ...

Like many, you might think of Redis as only a cache. That point of view is out of date. Essentially, Redis is a NoSQL in-memory data structure store that can persist on disk. It can function as a ...

An item of data that is identified by an arbitrary name. The key is the name, and the value is the content; for example, the key might be CITY, and the value might be CHICAGO. A key-value database is ...