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The simple answer is that far too few companies use it. The reasons mostly go back to the S/38 (and possibly early days of the 400) where journaling (required for CC) was considered a relatively expensive process CPU and disk wise. People tended to invent their own “solutions” and have stuck with them despite things changing radically in the cost and performance areas.

When I first worked with banks that had no CC in their systems I was horrified - kinda got used to it over the years!


On Nov 18, 2015, at 3:21 PM, John R. Smith, Jr. <smith5646midrange@xxxxxxxxx> wrote:

Wow, I have been doing RPG since 1992 and have been an RPG consultant since
1999 so lots of different companies / coding styles in the past 20+ years
and have never seen those two opcodes. I guess I owe someone an apology and
lunch for losing the bet.

Just out of curiosity, was the use of this very rare or have I just not
stumbled into the right companies that use it.

-----Original Message-----
From: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Vernon
Hamberg
Sent: Wednesday, November 18, 2015 3:07 PM
To: RPG programming on the IBM i (AS/400 and iSeries)
Subject: Re: RPGLE I/O opcodes with commit/rollback

Yep, the COMMIT and ROLBK opcodes are right there. The file you're working
with have to be journaled and woropened under commitment control, of course.
STRCMTCTL command, right?

On 11/18/2015 1:39 PM, John R. Smith, Jr. wrote:
I got into a heated conversation today about using the write / update
/ delete opcodes (not embedded SQL) and doing commits / rollbacks. I
said it could not be done but the other guy said he has done it. He
said he wrote RPG code that did opcode writes and updates (again, not
via SQL) and was able to do rollbacks to remove the data from the write /
update.



Does anyone know of any way of doing this?


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Jon Paris

www.partner400.com
www.SystemiDeveloper.com


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