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 ...

In the era of big data, good old RDBMS is no longer the right tool for many database jobs. Here's a quick guide to choosing among NoSQL alternatives I’ve been in Chicago for the last few weeks setting ...

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 ...