Hello David, I'd rather not sort the selection since it's generally already sorted. But I could do this, although it seems like a lot of overhead compared to the min/max functions:
Longint array from selection order by(date field;>) $Date_min:=date field Last record $Date_mix:=date field create selection from array Is that something like what you are proposing? Thanks! Alan On Wed, Oct 11, 2017 at 5:47 PM, David Ringsmuth <davidi...@gmail.com> wrote: > Alan, > > > > Sort the selection by the Date field, take the first Date, and then goto > selected record (table;records in selection(table)), and get that Date. > > > > This avoids loading much, except the date field sort. > > > > Hth! > > > > David Ringsmuth > > > > *From: *Alan Tilson via 4D_Tech <4d_tech@lists.4d.com> > *Sent: *Wednesday, October 11, 2017 4:30 PM > *To: *4D iNug Technical <4d_tech@lists.4d.com> > *Cc: *Alan Tilson <alantil...@gmail.com> > *Subject: *Min/Max for Date Fields in 4D > > > > Greetings everyone, > > > > Is there a way to get the earliest and latest dates from a selection of > > records similar to using Min/Max for numerical data? > > > > I have sorted the data and captured the first and last dates but this seems > > rather a lot of work to get this info. > > > > I believe that I have also used Selection To Array to capture the dates in > > the array and then sorted the array. > > > > Surely there is something I've overlooked? > > > > Currently using v13.6. > > > > Thanks, > > Alan Tilson > > ********************************************************************** > > 4D Internet Users Group (4D iNUG) > > FAQ: http://lists.4d.com/faqnug.html > > Archive: http://lists.4d.com/archives.html > > Options: http://lists.4d.com/mailman/options/4d_tech > > Unsub: mailto:4d_tech-unsubscr...@lists.4d.com > > ********************************************************************** > > > ********************************************************************** 4D Internet Users Group (4D iNUG) FAQ: http://lists.4d.com/faqnug.html Archive: http://lists.4d.com/archives.html Options: http://lists.4d.com/mailman/options/4d_tech Unsub: mailto:4d_tech-unsubscr...@lists.4d.com **********************************************************************
