Surrogate means a stand-in, a substitute. Surrogate keys take the place of a natural key as the primary key within a database table. Ideally, surrogate keys stand in the shadows and are used in ...

In a relational database approach, regardless of whether one is considering persisted data or transitory query results, almost everything is viewed as a logical table. Associations between these ...

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 ...

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 ...