Last time I checked SUPERC (even the "advanced" version delivered in the HLASM Toolkit) is pretty useless beyond LRECL=200. It wouldn't even show the differences in bytes beyond 176, IIRC. It seems to me that SUPERC's design point is source-code file comparisons, and even there not so much for really-long-line-length-allowed languages.
The commercial compare products (Comparex, INSYNC, FileMaster, etc.) do a pretty good job even on really large data files, if your employer is already paying for them. Comparex was always my favorite for the ability to compare files with random-order (or at least not fully sorted) keys. But Sri's DFSORT example is impressive, as usual. Peter -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of retired mainframer Sent: Friday, July 6, 2018 10:58 AM To: [email protected] Subject: Re: DFSORT - a quick way to compare two huge files EXTERNAL EMAIL Is there some reason SUPERC is not appropriate for this task? > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On Behalf > Of R.S. > Sent: Friday, July 06, 2018 4:04 AM > To: [email protected] > Subject: DFSORT - a quick way to compare two huge files > > We have two output files, rather huge ones (rather gigabytes than MB's) > with LRECL~1500, FB. > The goal is to compare them and find different records. > While I have some ideas how to do it (even ISPF Compare or ICETOOL) I > don't think it would effective. -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
