Re: Pre-relational, post-relational, 1968 CODASYL "Survey of Data Base Systems"

From: Lauri Pietarinen <lauri.pietarinen_at_atbusiness.com>
Date: 3 May 2004 03:13:49 -0700
Message-ID: <e9d83568.0405030213.562eae16@posting.google.com>

"Ken North" <knorth2_at_deletethis.yahoo.com> wrote in message news:<c74n93$lj8$1_at_ngspool-d02.news.aol.com>...
> > IMS/DB is the same as DL/I (the hierarchical database). It is
> > still in use because some old systems on mainframes have not yet been migrated
> > to DB2
>
> At a database conference in 1998, I heard that IBM was actually experiencing an
> increase in the number of IMS licensees. Companies were bringing in consultants
> and veteran developers for Y2K. Perhaps they were also using them to work
> through an application development backlog on some legacy hardware.

OK, but was this an increase in IMS/TM or IMS/DB (=DL/I) licenses? That makes all the difference.

regards,
Lauri Pietarinen Received on Mon May 03 2004 - 05:13:49 CDT