Mainframe, MVS and zOS Discussion

IMO the best places to to get information on the after/post Z-Xplore
would be groups/chats with people who have gone thru the same experience.

remember, self selling is a difficult task and very seldom succeeds
worth investigating ( if the cost is affordable ) the use of the services of an ...

instad of describing what you think happened,
post the jcl and the submitted job output

it is quite distressing to see that NOTHING is being done about spammers

here is the answer I got from chatgpt

Checking whether an email address is **fake, disposable, or risky** can be done in several ways depending on how deep you want to go. Here are the most common and reliable methods ...

write a wrapper to link IDCAMS
and process the return code according to your organization requirements

if you/your organization have the skills to zap the LISTCRA code

you/your organization should find the task of modifying the included code pretty easy

a quick and dirty wrapper example ...

topic locked, it is just spinning around with useless speculations
 

see
https://www.redbooks.ibm.com/abstracts/sg246105.html

if you want good answer you will have to ask good - well posed - questions
since you talk about auditing,...
what legal requirements are behind the audit request

meditate please also on the complexity of the issue ...
an you will understand why it will be difficult to get reasonable replies on a ...

what happened when you googled with  runtime stack overflow

here is the proof of concept ...
written for open object rexx running on APPLE,
but it will run as i on any system supporting open object rexx


#! /usr/bin/env rexx

Trace "O"
numeric digits 16

xiodata = "execio.data"
parse arg blksize
if blksize = "" then ,
blksize = 1
if DATATYPE(blksize ...

read the manual and/or search for "differences between COBOL COMP COMP3"

hint ...
COMP binary numbers
COMP3 packed decimal numbers

topic moved where it belongs ... the COBOL and friends section

I would use "EXECIO in chunks"
if You make the chunk size a variable to be set by an arg or statically at the beginning of the script
you will have a tunable environment by simply changing one statement
something like ... parse arg chunksize
if chunksize = "" then ,
chunksize = "a numeric value ...

see  https://zmainframes.com/viewtopic.php?f=12&t=12502
the same criteria for CI/CA sizes holds for variable length records

NO !

it depends on the parameters used
ADDRESS TSO "EXECIO * DISKR MYFILE (STEM MYRECORDS."
will read ALL the records , and a large file might hog the mvs memory an termiate the read
LINEIN will read one record at the time

P.S:
EXECIO will be faster when reading all the records in one invocation

run the DCLGEN db2 utility that will produce the cobol declarations corresponding to the db2 table

read the git docs about repository and file sizes 

The difference between "DD DUMMY" and "DD DSN=empty.dataset" on an input is simply that you need to have an empty dataset allocated which is consuming disk space. Attempting to read either will result in the same outcome; end of file



NOPE

when processing a single dataset that is , by pure ...

from the IBM url of IBM DEVELOPER

IBM Developer for z/OS® (IDz) is a modern and robust toolset designed for developing and maintaining IBM z/OS applications using DevOps practices. It enables you to deliver more work faster, with improved quality and greater agility.

implementing IDz is not like ...

why not speak to your operations support to see what is already in place ???

read and meditate on

https://www.redbooks.ibm.com/redbooks/pdfs/sg246366.pdf

most of the questions asked on zOS basics will have an answer there

pretty old but the concepts useful to beginners still applyy to the latest zOS versions