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  3. July 2012

Re: Indexed PF vs. LF performance

What might make more of a difference would be to reorganize the PF from time to time in the order of the key(s) most often used.

On 7/30/2012 3:19 PM, Tim Adair wrote:
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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