RE: null capable fields

[Buck Calabro <mcalabro@xxxxxxxxxxxx>]

Depending on the particular application, it might be quite reasonable to
turn off the null indicator and load the value for every field that is
not-null, and to turn on the null indicator and load default values for
every field that is null.  I think that the default setting for the null
indicator is NOT NULL, and that it stays that way until it gets turned on.
As you have discovered, the null indicator is just another attribute of the
field, like datatype, length and value.

Buck Calabro
Aptis; Albany, NY
mailto:Buck.Calabro@aptissoftware.com

> -----Original Message-----
> From: Colin  Thorpe 
> Sent: Wednesday, September 01, 1999 8:21 AM
> To:   RPG400-L@midrange.com
> Subject:      null capable fields
> 
> Does anybody have experience of null capable fields..
> 
> I am aware of the %NULLIND BIF,
> 
> The problem I have is, that I am writing a some conversion programs in
> RPG IV to a progress database.
> The progress database fields are all null capable (ALWNUL *USRCTL) on
> the DDS. 
> 
> When I load the fields with valid data I think the nullind remains on.
> Therefore it must be turned off before a write?
> On doing this, if I write null data to that field ie 0001-01-01 for a
> date. I need to switch the ind back on so that the progress data base
> displays blank.
> 
> It appears this has to be done for every field, is there an
> easier/better way of doing this.
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