Re: Quick question on file behavior

Thanks! My understanding is corrected.

Jim Oberholtzer
Agile Technology Architects

On Jul 10, 2020, at 4:10 PM, Bruce Vining <bruce.vining@xxxxxxxxx> wrote:

I assure you that the RRN is at the end of the index entry (unless,
of course, things have really changed).

On Fri, Jul 10, 2020 at 5:09 PM Jim Oberholtzer <midrangel@xxxxxxxxxxxxxxxxx>
wrote:

Even with reuse deleted records Bruce?

Jim Oberholtzer
Agile Technology Architects

On Jul 10, 2020, at 4:08 PM, Bruce Vining <bruce.vining@xxxxxxxxx>

wrote:

So long as we're talking native RLA, then yes. That's how the index

values

are set.

On Fri, Jul 10, 2020 at 5:02 PM James H. H. Lampert <
jamesl@xxxxxxxxxxxxxxxxx> wrote:

Ladies and Gentlemen:

I have a file that is *not* uniquely keyed (the designer is apparently
ideologically opposed to allowing the OS to enforce uniqueness).

In my general observations, it has always been my *impression* that if
I'm going through a file in keyed sequence, via native RLA, records with
duplicate keys are presented in RRN sequence. But I am not certain of
that (and conversely, everything I've read about SQL-only databases like
MySQL says that the sequence in which records with the same key appear
in a result-set is neither predictible nor even necessarily repeatable).

But this is strictly DB2/400, via native RLA: If I am "Riding The RPG
Cycle" through the file, and I hit two or more records with the same
key, *can* I reasonably expect them to appear in ascending RRN sequence?

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Thanks and Regards,
Bruce
931-505-1915
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931-505-1915
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