Re: still null capable

["Peter Dow" <pcdow@xxxxxxxxx>]

Hi Jon,

I would expect that RPG would have to provide an ALWNULL keyword on D-specs.
Basically what I'm expecting here is that the null indicator be hidden from
the RPG source, in the same way that the length of a variable length field
is hidden.

Imagine having to do variable length fields by having a separate length
field corresponding to each variable length field. That's basically what's
going on with null-capable fields now.

Regards,
Peter Dow
Dow Software Services, Inc.
909 425-0194 voice
909 425-0196 fax


> > Imagine then that I detect that a field is null and want
> > to show the
> > operator the text "No data supplied" rather than whatever
> > garbage is in the
> > field.  The minute I move that text into the display
> > field the field is now
> > non-null - guess what happens if I write it back to the
> > database!  This is
> > just one example of the little minefields waiting to be
> > discovered in this
> > area.


> +---
> | This is the RPG/400 Mailing List!
> | To submit a new message, send your mail to RPG400-L@midrange.com.
> | To subscribe to this list send email to RPG400-L-SUB@midrange.com.
> | To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com.
> | Questions should be directed to the list owner/operator:
david@midrange.com
> +---


_________________________________________________________
Do You Yahoo!?
Get your free @yahoo.com address at http://mail.yahoo.com

+---
| This is the RPG/400 Mailing List!
| To submit a new message, send your mail to RPG400-L@midrange.com.
| To subscribe to this list send email to RPG400-L-SUB@midrange.com.
| To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---