Re: sql insert (ignore auto generated ID)

yep - pray I am NOT! 😱😱😱😱

On Wed, Dec 12, 2018 at 3:15 PM Rob Berendt <rob@xxxxxxxxx> wrote:

Dave,
I wondered about that.
Hopefully he's not uploading a bunch of daily batches. You know the ones
where it starts over with a new identity column of 1 every day and when
you insert that into the upload it hurls because 1 is already in use
(assuming the identity column is also a primary key constraint).


Rob Berendt
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From: dlclark@xxxxxxxxxxxxxxxx
To: "Midrange Systems Technical Discussion" <midrange-l@xxxxxxxxxxxx>
Date: 12/12/2018 03:12 PM
Subject: Re: sql insert (ignore auto generated ID)
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



"MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx> wrote on 12/12/2018
02:31:45 PM:

i have a statement

insert into ldatat3x.ftpdtl
(select *
from ldatad3x.ftpdtl
where dftpid = 'PMIISGN-G')

source and target file are same of course except in different libs...
primary key on both is ID which is auto generated.

to avoid, Value cannot be specified for GENERATED ALWAYS column DID., i
know I can layout the source/target columns, but what a PIA.
is there an easy way to simply ignore/override the ID column and have

sql,

be smart enough to assign a new one from the target table/rows?

I've tried the following with no luck...

insert into ldatat3x.ftpdtl overriding system value
(select *
from ldatad3x.ftpdtl
where dftpid = 'PMIISGN-G')

That is example what IBM says. So, what do you mean by "no luck"?

<quote>
You can force the system to use the value from the select for a GENERATED
ALWAYS identity column by specifying OVERRIDING SYSTEM VALUE. For example,

issue the following statement:

INSERT INTO ORDERS OVERRIDING SYSTEM VALUE
(SELECT * FROM TODAYS_ORDER)

This INSERT statement uses the value from SELECT; it does not generate a
new value for the identity column. You cannot provide a value for an
identity column created using GENERATED ALWAYS without using the
OVERRIDING SYSTEM VALUE clause.
</quote>


Sincerely,

Dave Clark
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home: (937) 751-3300

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(937) 294-5331





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