This series started with the pie chart, a useful tool that graphically summarizes data. However, pie charts only provide a "snapshot" of a moment. This tip focuses on bar charts, which show the data's evolution.

Written by Rafael Victória-Pereira

In the previous TechTip, I provided an example of a pie chart similar to the one below, which shows, with a little humor, the most common uses of cell phones:

In SQL for eServer i5 and iSeries you will learn about Structured Query Language (SQL), but with an IBM eServer i5/iSeries twist. With a practical "how-to" style, the book first introduces you to the basics essential for any developer to build a solid foundation. Then, the book examines--in detail--the many ways in which SQL functions on the iSeries. Make your database access cutting-edge with SQL for eServer i5 and iSeries. Now available in eBook format. >>

IBM has invested heavily in new features of a leaner and meaner Informix V11.7 that is scalable, more reliable, easier to use, and very fast.

Written by Chris Smith

With the increased interest in AIX on Power, the question eventually arises as to which database the user plans to run. IBM i has DB2 built into the OS, but when you install AIX, you have to go shopping for a database. According to IBM, many AIX users have opted for Oracle. Presumably, this is because the applications they wish to run—such as an ERP solution—are designed to run on Oracle. One could also choose to run DB2 on AIX instead of Oracle. However, there is another choice that might be even more appealing, and that is Informix. You can download, install, and run a robust production version for free.