A database that maintains a set of separate, related files (tables), but combines data elements from the files for queries and reports when required. The concept was developed in 1970 by Edgar Codd, ...

If you’ve worked with relational database systems for any length of time, you’ve probably participated in a discussion (argument?) about the topic of this month’s column, surrogate keys. A great ...

Often one reads a book or hears a presenter making a pun about relational theory being called “relational” because of entities being “related.” Such references are nothing but misplaced puns.

The relational database so dominates the thinking of information technology and business professionals that its presumed suitability for essentially all data management tasks is rarely questioned. But ...