Re: Record Lock under Commitment Control

You could NOT do chain-update-update on System 34.

Although the Baby/34 product that would run RPG code on a PC did allow
this and finding that error took quite some time!!!!

Cheers

Don




From: "x y" <xy6581@xxxxxxxxx>
To: "Midrange Systems Technical Discussion"
<midrange-l@xxxxxxxxxxxxxxxxxx>
Date: 25/02/2022 05:09 AM
Subject: Re: Record Lock under Commitment Control
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxxxxxxxx>



You could do a chain-update-update on primitive systems--that would be the
System/3, System/4, and System/36. Those programs blew up on the
System/38
and AS/400 (which is what it was called back then).

On Wed, Feb 23, 2022 at 9:57 AM Rob Berendt <rob@xxxxxxxxx> wrote:

Interesting.
It might be interpreted as I could do a
Chain
Update
Update
The first update may release the lock but it would still keep the

pointer

so the next update would also work. As long as the second update is

within

the same commitment definition.

But that's a guess.

I wonder what this would show in between the updates
https://www.ibm.com/docs/en/i/7.4?topic=services-record-lock-info-view


Rob Berendt
--
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Dept 1600
Mail to: 7310 Innovation Blvd, Suite 104
Ft. Wayne, IN 46818
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<midrange-l@xxxxxxxxxxxxxxxxxx>

Subject: Re: Record Lock under Commitment Control

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So what does the below mean?

I found this under IBMs Commit Lock Level documentation:
Within the same job, a program can change a record that has already been
changed within the current transaction as long as the record is accessed
again using the same commitment definition. When using the job-level
commitment definition, the access to the changed record can be made from

a

program running within any activation group that is using the job-level
commitment definition.

I can only update the record only in the same program? Doesn't it kind

of

defeat the purpose of 'transaction'?

On Wed, Feb 23, 2022 at 12:14 PM Rob Berendt <rob@xxxxxxxxx> wrote:

There is no "other" If it's locked, it's locked.
<snip>
even though it is kept locked for other jobs or programs
</snip>

Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1
Group Dekko
Dept 1600
Mail to: 7310 Innovation Blvd, Suite 104
Ft. Wayne, IN 46818
Ship to: 7310 Innovation Blvd, Dock 9C
Ft. Wayne, IN 46818
http://www.dekko.com
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