-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of James Lampert
Sent: Monday, October 15, 2007 2:36 PM
To: Midrange Systems Technical Discussion
Subject: Re: AW: Has something changed, with respect to join logicals?

rob@xxxxxxxxx wrote:
James,

Apparently updating a join logical does not seem that
absurd to many
others. IBM does not usually pour time and talent into
something that
no one wants.

Please understand that by invoking "division by zero" as a
comparable absurdity, I meant "absurdity" in the
mathematical/logical sense of something that is not only
undefined, but undefinable.

Not necessarily....

For instance, if there's a one-to-one match between records in the joined files, then it's pretty easy
for the DBMS to allow updates through the view.

IIRC, both Oracle and MS SQL server allow such updates without resorting to instead of triggers.

I'm actually kind of surprised that DB2 doesn't.


Charles


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