Re: DDL - Handling Nulls

NULL-capable fields have a NULL-indicator you can test - in embedded you also can define a separate indicator variable - details are in the SQL programming manuals for RPGLE.

Now things are getting better all the time - find the manual that matches your OS level.

Strictly speaking, NULL is neither a value or a data type - it indicates that the value of this column of this type is not known, or has no value. However, many do loosely speak of a NULL value.

Best I can say is RTFM - it's all in there.

HTH
Vern

-------------- Original message --------------
From: Doug Palme <DPalme@xxxxxxxxxxx>

We have been expirementing with DLL files lately and have run into an
issue regarding NULL values. Now, I know that SQL tables allow NULL as a
value for a field and it is considered a data type that can be used; and
that is different than a blank.

I also know that I can code the DDL up front to not allow nulls and
provide a default value, but is there a way to handle nulls in an RPG IV
program without having to recompile the DDL?

Just looking for as many options here as possible, knowing that the best
one is to code it right up front....
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