Shouldn't make a difference. The index will be a separate object within the database in either case (I believe).
Paul
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Tim Adair
Sent: Monday, July 30, 2012 3:19 PM
To: midrange-l@xxxxxxxxxxxx
Subject: Indexed PF vs. LF performance
A colleague asked me about this and I haven't been able to find any definitive information.
For RPG (IV, but not ILE) doing CHAINs, SETLLs, and READs - which is faster, an indexed PF or a flat PF with an LF defined with the key? For the sake of this question, let's assume we're talking about a single key field. The file is DDS-defined, and must remain that way for now. And for this example we're not interested in rewriting the RPG using SQL.
We're on 7.1.
Thoughts please?
TIA.
~TA~
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