Data analytics is the science of analyzing raw data to make conclusions about that information. It helps businesses perform ...

Relational Database Basics This course teaches you the fundamental concepts of relational databases and Relational Database Management Systems (RDBMS) such as MySQL, PostgreSQL, and IBM Db2.

Navigational databases offer exceptionally rapid data access in exchange for rigorous data structure requirements. This post is one of a series that introduces the fundamentals of NOSQL databases ...

Document store databases let you manage records that are long and have varied structure. This post is one of a series that introduces the fundamentals of NOSQL databases, and their role in Big ...

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 ...

This report aims to introduce the basic concepts and benefits of columnar databases in a straightforward manner. Its value proposition should be balanced against limitations of the technology, and ...

Figure 5. The customer database should include the information noted above. Keeping a running monthly total in a spread sheet and then in a checking account program helps maintain accuracy. The ...