Re: Migration from 5.01 to 7.2

> David Williams <djw@smooth1.demon.co.uk> writes: > In article <5opaku$gl4@cssun.mathcs.emory.edu>, MS CARLEEN C AVANT > <cavant@safecen.navy.mil> writes > >Internet < cavant@safecen.navy.mil > > >COM (757)444-3520 DSN 564-3520 > > ext 7050 > > [ STUFF SNIPPED ] > >One particular "burning" question we have is will our current applications > >utilizing 4.x tools migrate "transparently" to 7.2 engine utilizing 6.x > >tools? We have been lead to believe they will. > >Thanks in advance. > > Should do assuming they have been written well i.e. > > 1. All functions calls pass the correct number of parameters and > except the correct number of parameters to be returned. > > 2. Never try to close a cursor twice as 4.x tools ignore the error > but 6.x tools report the error. > > These are the main porting issues...version 6.x report more errors > than version 4.x tools. Informix have tightened up of what > undocumented behaviour you can "get away with". > > David Williams > >>>> Just doing a 5.X --> 7.X migration 6.X tools bit us do to the "tightening the David mentions... e.g.: a Not found on a fetch into an uninitialized record (with a datae field).. 20 - 30 seconds of error messages ( -1210 ) and garbage. I know bad programming, but I inherited it!!!