Opinion Last week, I committed a crime. No, I did not defraud the IRS/HMRC or steal some Snyder's Pretzels/Cheesy Wotsits. It was much worse. A keen reader pointed out that I had miscounted the number of versions of Db2, IBM's relational database. Although I had listed the versions of IBM's 40-year-old database running on Linux or Unix or Windows (LUW) and its System Z mainframe, I neglected to mention the version running on the mid-range server once known as AS/400, now – after several intermed...