See if this helps you. https://mainframe.elevengestures.com/processing-a-gdg-in-any-order/
A combination of using ISGCSI00 and COBOL's dynamic allocation http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IGY3LR50/4.2.3.1 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
