On 11/11/23 19:36:36, Seymour J Metz wrote:
It is possible to do skip sequential reading of physical records. Itt is not
possible to skip logical records.
There are two cases where it is possible; RECFM=FBS and you know the physical
record number; you know the TTR of the physical record.
what does the EXECIO linenum option do?
<https://www.ibm.com/docs/en/zos/3.1.0?topic=commands-execio>
EXECIO arose on CMS and antedates REXX. CMS files are indexed by
line number. I'd expect EXECIO on CMS to do True Skip-Sequential
Processing. Less likely on z/OS, even for RECFM=FBS.
--
gil
