On Tue, 10 Jul 2018 14:23:34 -0400, Tony Thigpen wrote: > >Take a simple "I want to use a VSAM file". Here is what is normally used: >z/OS: >//POLYUPD DD DSN=PROD.HKY.VSAM.HPP002P.F03,DISP=SHR >z/VSE: >// DLBL TEITEST,'TEI.TEST.VSAM',,VSAM,CAT=VSESPUC > >z/OS (mostly) requires a DISP=. VSE (mostly) does not. VSE determines >the correct setting at open time. > How can it infer the difference between KEEP and DELETE? (Or is that the "mostly" part?)
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