-----------------------<snip>-------------------
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?
---------------------<unsnip>------------------
GO FOR IT! Unless you're writing in Assembler, SORT will subset the
records MUCH faster than REXX or Perl. And you'll find REXX and Perl
execution times considerable reduced. This is one case where I learned
that adding a step can actually shorten run time. (I was using the
DATASET profile records.)
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html
