On Sun, 7 Jul 2013 13:00:05 -0400, Shmuel Metz (Seymour J.) wrote: > >>As above, there's no need. [to distinguish PDSE from PDS] > >That depends on what you're doing. My code for accessing multiple >members via QSAM with a single OPEN will definitely not work for PDSE. > I wonder how HLASM does it. I don't believe it does multiple OPENs. Particularly needed for nested COPY statements. > >>1. Is PDSE the same (I mean same structure of directory and directory >>entry) in that regard? > >PDSE is very different, but IBM provides mapping. > IBM provides a transformation rather than a mapping.
>>2. Otherwise, where can I find documentation about PDSE in the sam >>econtext? > >DFSMS Using Data Sets > >DFSMS Macro Instruction for Data Sets > These describe the Access Method interface, but say nothing about the data format, which I believe is a trade secret. (Well, almost nothing beyond stating that the data are stored in 4KiB blocks of unspecified format.) -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
