This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big Data Analytics. What is a navigational database? Navigational databases use a distinctive guided ...

It’s a common mistake: a company puts a poorly performing database on larger and larger servers, throwing more and more money away while making the same mistakes, but the database never gets any ...

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 ...

When databases became available for the personal computer in the mid-1980s, they quickly gained a mystique as the ultimate productivity applications. Despite their widespread use, in some ways they ...

Many people claim to understand the basics of good data and database hygiene. Often, these same people claim it is all very simple and very obvious. However, when peering into existing code and ...

Maintaining and updating software is an important activity for a Technical Support role. There are many types of software, and understanding software can be overpowering. This course introduces the ...

File-based databases have been around since the dawn of computing. We’ve always needed to have a way of storing records of the same kind of information. In the PC world, we ended up with very popular ...

This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big Data Analytics. What is an XML database? XML databases use XML to model and query data. XML is a ...