I have this programmer that coded the following DD cards in JCL. I'm not
100% sure what z/OS v1.13 does with the first DD card for a KSDS VSAM file,
but I think it gets replaced by the second. Here is an example of the JCL:

//PRTOUT    DD   SYSOUT=X
//* VSAM FILES
//PBGDD     DD   DSN=TM#TEST.FILE
//PBSF1     DD   DSN=TM#PROD.FILE
//PBSF1     DD   DSN=TM#TEST.FILE

My thought, second PBSF1 (test file) replaces PBSF1 (production file).

Thanks in advance!

*George Rodriguez*
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