Re: Porting 4GL Version 2.x To 6.x

Darryl Priest <dpriest@erols.com> wrote in article <332B9C51.1FDD@erols.com>... > I am involved in porting a few applications on AT&T 3B Systems using > version 2.10 engines and 4GL versions 1.10 and 2.10 to OnLine 7.x, on a > Sun 3000(not sure yet), with 4GL version 6.x and I was wondering if > there are any functions/functionality that existed in the older versions > but does not in the newest version? I don't believe that any major > changes have occured BUT I know that small things change from version to > version and what I'm afraid of, is that maybe old functions changed > names, functionality, etc. Any help, or pointers, will be appreciated. > > -Darryl Priest > Wishing you the best of Luck. I went through similar upgrades more than Once. The repsonses that have been posted cover most of the problems. I seam to remember a problem with the porting of the data on on upgrade (ver 2 to 4.1) where the base architecture also differed. We were moving from some ancient Unisys machine to an Intel platform. The Decimal/Integer values would unload incorrectly, resulting in having to create unload files using 4GL reports. Depending on your code there in not a hell of a lot that can go wrong. There was one system though where there were more than 15 nested IF statements which would not recompile under 4.1. Simply breaking up the code into functions and sub functions did the Job. Best of Luck! PS Why Informix 6 and not 7? Dennis JR Harding (djrh@icon.co.za)