Feature

Override a SYSIN DD DSN in the proc from the JCL?

Override the SYSIN DD Domain Name Source (DNS) in proc using the Job Control Language (JCL) this code syntax.

Mark Zelden
By
Published: 10 Nov 2008

Q:
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 is //STEPNAME.DDNAME DD.

For example:

//MYJOB JOB (ACCT),CLASS=A
//*
//EXEC PROC=MYPROC
//*
//STEP1.SYSIN DD DSN=MY.PDS.CNTL(SYSIN1),DISP=SHR

For 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.

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