RE: reads and updates on the same file

I guess I might be misunderstood the problem.  The original email
indicated that he created a new logic with same key to avoid record
lock.  If the problem Ken is encountering is what your are describing,
how would creating a new logic correct the problem?



-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of
Michael_Schutte@xxxxxxxxxxxx
Sent: Friday, May 12, 2006 3:00 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: reads and updates on the same file

Lim, if you are reading an update-able file to load the subfile, the
last record read will be locked unless you use the (N) extender.  That
record will remain locked until UNLOCK?, UPDATE, DELETE, or another read
is performed.


The issue that this causes is when a second person calls the program up.
The second person will not be able to load their subfile because the
READ is trying to gain an exclusive lock on a record that is already
locked.
It's my opinion that you should always load subfiles with the (N)
extender.


Michael Schutte



 

             "Lim Hock-Chai"

             <Lim.Hock-Chai@us

             amobility.com>
To 
             Sent by:                  "RPG programming on the AS400 /

             rpg400-l-bounces@         iSeries" <rpg400-l@xxxxxxxxxxxx>

             midrange.com
cc 
 

 
Subject 
             05/12/2006 03:45          RE: reads and updates on the same

             PM                        file

 

 

             Please respond to

              RPG programming

              on the AS400 /

                  iSeries

             <rpg400-l@midrang

                  e.com>

 

 





As long as the loading and updating is done in the same program on the
same file, you should not get record lock problem.  Are you actually
having record lock problem?



-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Ken Kerata
Sent: Friday, May 12, 2006 2:22 PM
To: RPG400-L@xxxxxxxxxxxx
Subject: reads and updates on the same file

This program displays a subfile of all records in the file and  later
updates individual records.
To avoid record locks, I created a new logical file with the same key as
the originals.
Is there a more elegant solution, which avoids creating a second
logical?
This is my first posting, so I would appreciate any advice.
Thanks, Ken


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