Re: Message queue is full...

Hi Ken,

<snip>
When you READC and there are no more changed records, you _are_
attempting to read a record that no longer exists. And IIRC, on older
versions of OS/400 this _would_ put a message in the job log (which is
one of the reasons why I stayed away from it).
</snip>

Maybe older version did do that, but I have tested this on a V5R2 and V5R4
machine and no messages are written to the joblog. I guess it all depends on
whether you are running your code on a release earlier than V5R2 or not.
Personally, I would rather die than do that. Life doesn't begin at 40 it
begins a V5R4. :-)

<snip>
For the OP, since he already has a CHAIN loop, the simplest thing is
to keep a count of the number of subfile records loaded, and only loop
to that number. Then he is _truly_ never attempting to retrieve a
record that doesn't exist. And it doesn't require modifying the DDS
to add SFLNXTCHG.
</snip>

Is this simpler? Maybe it is. But the programmer now always has to ensure
s/he knows how many records are in the subfile and keep that field updated
with the correct value. Not sure if that is simpler than just letting IBM
worry about how many records to read. But, both solutions will work fine and
both will result with no messages in the joblog. That is, after all, what
was required.

As always, there are many ways to perform a simple task on the iSeries - we
have simply put forth two of them.

Cheers

Larry