What is an event store database? An event store is a database designed for tracking event as they occur, and maintaining a record of those events. How is an event store database different from a ...

This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big Data Analytics. What are wide column stores? Wide column stores are database management systems ...

A relatively new concept in the world of database systems is the NoSQL DBMS. What is NoSQL? Well, I bet you guessed that it doesn’t use SQL, right? I mean, it is sort of right there in the name. But ...

Dr. E. F. Codd defined a simple set of operators for relational tables in his original work. The goal for the set of operators was to be both complete and minimal; mathematicians like those properties ...

What is Amazon RDS (Relational Database Service)? Amazon Relational Database Service (RDS) is a managed database service provided by Amazon Web Services (AWS). It makes it easy to set up and operate 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 ...

Relational databases are a staple across industries, but graph databases offer different capabilities that may fit enterprise needs better. Graph databases are one of four popular NoSQL database types ...

Most database startups avoid building relational databases, since that market is dominated by a few goliaths. Oracle, MySQL and Microsoft SQL Server have embedded themselves into the technical fabric ...

Even though MongoDB and Cassandra keep winning converts, enterprises are keeping their RDBMSes around, and will do so for quite some time. NoSQL promised to upend the database market as big data ...