----- Original Message -----
From: "McKown, John" <[EMAIL PROTECTED]>
Newsgroups: bit.listserv.ibm-main
Sent: Friday, May 23, 2008 10:04 AM
Subject: Opinions? Subset input with DFSORT before processing in REXX?
I write a lot of code in REXX. I also like Perl, but rarely use it on
z/OS. Anyway, I was just trying to think (hard on the lead in to a 3 day
weekend in the states). Would I gain very much if I subset my input file
using DFSORT instead of subsetting in my REXX code. My example in this
is the output from IRRDBU00. That creates a "flat file" unload of the
RACF database, which I use to write a report. I use the 0200 records. In
my shop they account for less than 5% of the records in the file. Seems
to me that using DFSORT to subset the data, even if only used once,
would result in less CPU, I/O, and elapsed time. What say ye?
SYS1.SAMPLIB(IRRICE).
Regards,
Tom Conley
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