The article opens by stating the author had overlooked mentioning the iSeries (aka AS/400) version of DB2 in a list of DB2 versions. My understanding is that t

The article opens by stating the author had overlooked mentioning the iSeries (aka AS/400) version of DB2 in a list of DB2 versions. My understanding is that the iSeries DB2 was really more a marketing name applied to the iSeries database. Here are a couple of supporting quotations out of Frank G. Soltis's book Inside the AS/400 (both from page 120). Soltis was the chief architect of the AS/400: IBM selected the name DB2 for OS/400 to reflect that it is part of the IBM DB2 family of relational database products. The family resemblance among these database products exists primarily in their external tools and their support for distributed database facilities. The underlying support is quite different in each case, and the AS/400 may well be the best in the group. The DB2 name does help alleviate the perception that the AS/400 does not have as robust a database as other systems. ... I was opposed to naming the AS/400 database until | had a meeting with a large manufacturing customer who was moving from another system to the AS/400. In the meeting, the technical people asked me what database | would recommend for the AS/400. | blurted out, “DB2/400,” a name being circulated in internal discussions. Immediately, the people in the room began to nod and make comments like, “Oh, that’s a very good database.” Considering that these people worked for another division in IBM and they didn’t know the AS/400 had a database, it was obvious to me that we needed to name it.