Subject Re: Variables in MEM files From Yiannis H. Economides <yianeco@cytanet.com.cy> Date Tue, 15 Jan 2019 04:01:58 -0500 Newsgroups dbase.getting-started Hi Ronnie, Yes that should work. I am already using EXCEPT but the key is that the MEM file is always overwritten. Thanks Yiannis //-------------------------------------------------------------------------------------------------- Ronnie MacGregor Wrote: > In article <JBTuCXErUHA.1832@ip-AC1E04A7>, yianeco@cytanet.com.cy says... > > > I can add and update variables in a MEM file but I can't figure it out > > how to delete (remove) a variable from the file. > > Wow !!! . . . . Interesting one !! > > I could have answered this question without hesitation twenty years ago, but > now, . . . . without experimenting and looking at the resultant .mem file with > a Hex Editor . . . . . > > From memory, I think that the disk file is over-written each time, so that only > the variables you define in a save are written to the replacement disk file. > > So I think deletion is by ommision from the save list. > > Untested example from 25 year old code, modified to omit one variable :- > >    Sxrem1=m->Finrem1 >    Sxrem2=m->Finrem2 >    Sxrem3=m->Finrem3 >    Sxrem4=m->Finrem4 >    Sxrem5=m->Finrem5 >    SxremD=m->FinremD >    SAVE TO (SecPracPath)+"Sxrem.mem" ALL LIKE Sxrem EXCEPT Sxrem3 > > Does that work ? > > > > -- > Ronnie MacGregor > Scotland > > Ronnie at > dBASEdeveloper > dot co dot uk > > www.dBASEdeveloper.co.uk > > >