How can I override a SYSIN DD DSN in the proc from the JCL? Mark Zelden, Senior software and systems architect, Zurich North America:
The syntax to override a DD statement in a proc from the execution JCL
//MYJOB JOB (ACCT),CLASS=A //* //EXEC PROC=MYPROC //* //STEP1.SYSIN DD DSN=MY.PDS.CNTL(SYSIN1),DISP=SHRFor more information see section 5.2 on modifying procedures in the MVS JCL Reference. If the IBM JCL manuals confuse you, you may want to pick up a book on JCL like Murach's OS/390 and z/OS JCL. There are other JCL books that you can find on Amazon.com as well.
This was first published in November 2008