Are there any obvious instances to be aware of where ALTER TABLE might fail ?

Richard Schoen
Email: richard@xxxxxxxxxxxxxxxxx


message: 1
date: Sun, 28 Nov 2021 21:23:14 -0300
from: Raul Alberto Jager Weiler <raul.jager@xxxxxxxxx>
subject: Re: Deploying DB2 Table Changes

You can add a column in any place using ALTER TABLE, the option is "BEFORE fieldname"

On Wed, Nov 24, 2021 at 3:23 PM Vern Hamberg via MIDRANGE-L < midrange-l@xxxxxxxxxxxxxxxxxx> wrote:

Hi Richard

At least since V5R2, the CHGPF command lets you specify a source
member that has the changes, the data will be copied, changes made,
then data copied back - at least, that's the effect.

If DDL with SQL, ALTER TABLE gives some options - deleting, changing,
and adding columns can be done - adding has to be at the end, IIRC.


On 11/24/2021 8:37 AM, Alan Shore via MIDRANGE-L wrote:
Hi Richard
The answer to your question is tape recording number 26 It depends
First - what release are you on? If you are on an extremely old
(decades) release, you may have no choice
What change are you doing?
Adding one or more new fields?
Changing an existing field - if so - from what to what

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