RE: NULL's on the Iseries

["Walden H. Leverich" <WaldenL@xxxxxxxxxxxxxxx>]

>I looked at the info on FETCH in T-SQL - it does not include any 
>syntax for a null indicator array or variable. 

Exactly, it doesn't need one -- the "language" is sql-aware (obviously)
so it "knows" whether the field is null or not.

>you say that "they represent a value" - I think that NULL 
>actually represent a condition or attribute.

You say potato, I say potato (hmmm, that's doesn't write as nicely as it
speaks. <G>)

>IBM has chosen to implement this aspect of database technology by...

This is basically identical to what SQLServer does, the indicators are
at the front of each data page, and my understanding is that this is
also how Oracle does it.

>RPG is very helpful when handling fields directly, a little clumsier
when going through SQL.

That's because RPG basically uses the call-level-interface APIs. When
you get to something like ADO it's a little cleaner.

-Walden

------------
Walden H Leverich III
Tech Software
(516) 627-3800 x11
WaldenL@xxxxxxxxxxxxxxx
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)