• Subject: RE: RPG - conversion vs re-write
  • From: Bob Cozzi <BobCozzi@xxxxxxx>
  • Date: Fri, 12 Sep 1997 09:45:58 -0500

John,

I think what would be great is if the system itself would detect the NULL 
indicator and handle it as an exception: showing *NULL for the field's 
value, for example on the DSPPFM or RUNQRY output. In RPG IV, perhaps some 
overhead or a Header spec keyword could be added to cause additional code 
that would handle fields with their NULLID set on. Like if you use a date 
field with the ADDDUR operation code, the error indicator would get set on, 
or *PSSR or something else would be evoked.

Bob Cozzi
Bob@RPGIV.COM
www.rpgiv.com
AS/400 Books:  http://www.rpgiv.com/as400Books.html


On Thursday, September 11, 1997 9:27 PM, John Carr [SMTP:74711.77
>
> To the other person who said "I'd like to see the value be *LOVAL or
> something"  I don't think that the same value in all data types would
> accomplish it.  Lets say the value for Null was X'00'  how would that
> look in a Binary field?  I don't think it would "Special" I think it
> would be seen as just a normal Zero value, Right?
> I mean in a Zoned Decimal or a Alpha field it would stand out like a
> sore thumb on a DSPPFM  etc.  But the binary wouldn't look abnormal.
> I think it's an attribute of a field myself.
> Maybe I'm wrong on this though.
> John Carr

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