Not sure if possible, but i would give a try to jcl refer back. Step 1 use
the dd as dummy, but run a rexx to free and allocate the right ddname with
a member name received from jcl parm.
Step 2 reference the dd, but it is now a different name.

ITschak

בתאריך יום ו׳, 26 ביולי 2019, 15:50, מאת Tom Marchant ‏<
[email protected]>:

> On Fri, 26 Jul 2019 07:44:51 -0500, John McKown wrote:
>
> >On Thu, Jul 25, 2019 at 4:19 PM Tom Marchant <
> >[email protected]> wrote:
> >
> >> How about an IEBCOPY step where you specify GDGBASE(0) on
> >> INDD (or whatever) and select MEMBER to be unloaded to a
> >> temporary data set?
> >>
> >
> >I guess. But, given that I'm on z/OS 1.12, I can't make the member to be
> >select a value on a PROC.
>
> Well, then, an IEBCOPY step to copy the PDS to a temporary PDS,
> then a step to read the member from the temporary PDS.
>
> --
> Tom Marchant
>
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