Runs every day here. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of McKown, John Sent: Friday, May 23, 2008 7:00 AM To: [email protected] 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? -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it. ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
