A primary key, also called a primary keyword, is a column in a relational database table that's distinctive for each record. It's a unique identifier, such as a driver's license number, telephone ...

Help students develop deeper understanding of the relational model, keys, and database constraints through 5 realistic, critical-thinking case studies. Rather than simply asking students to define ...

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 ...

Master database schema design principles to create scalable backend systems, optimize key queries, and protect complete data ...

It's good to be back writing for Intelligent Enterprise after a long break. I was writing for Intelligent Enterprise before it was Intelligent Enterprise. Let me explain. In the early '90s, I had a ...

Excel possesses formidable database powers. Creating a relational database starts with a Master table that links it to subordinates, called (awkwardly) Slave, Child, or Detail tables. Before we dive ...

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 ...

If you want to know what’s what in Big Data analytics today, you’ve got to know the basics of NoSQL databases, and how appropriate NoSQL databases facilitate Big Data analytics. What are the most ...