Re: Logical file keyed by active RRN

["Booth Martin" <booth@xxxxxxxxxxxx>]

If your logical includes only active records and no key won't your logical
be in arrival order, and therefore RRN order?

It isn't clear to me how reuse of deleted records works though.
 
 
---------------------------------
Booth Martin
http://www.martinvt.com
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-------Original Message-------
 
From: RPG programming on the AS400 / iSeries
Date: 07/22/05 13:04:27
To: rpg400-l@xxxxxxxxxxxx
Subject: Logical file keyed by active RRN
 
I want to create a logical file where the key is RRN.  I only want
active records listed in this logical.
 
 
 
The goal here is to be able to SETLL by key of RRN and have the pointer
positioned either at the next record in the file or EOF.
 
 
 
This is for a situation where there could be millions of deleted records
in the file.  Doing a regular SETLL by RRN and a READ could end up
scanning thru millions of deleted records.
 
 
 
Doing a SETLL on a logical file _keyed_ by RRN might do the trick.
 
 
 
Any thoughts??
 
 
 
 
 
 
 
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