Hi Lindy,

In response to:

"Are there any "standard" ways that allow update of PS files?  Using
COBOL? I can't think of any off hand other than some proprietary access
methods that use EXCP.  Can EXECIO do it?  I can check on that..."

Not withstanding the responses already published I was about to say that I
believe the traditional answer to your question is NO, when I decided to
check the Cobol Programmers guide to avoid the 'egg on face' syndrome. 

It states in the aforesaid manual that QSAM files (which embraces PS) can be
updated with records of the same size if the file is opened as I-O, and
REWRITE is used. The other caveat is that the data set must reside on disk.

This functionality corresponds nicely with EXECIO DISKRU/DISKW pairings used
in REXX.

I have not checked specifically but my guess would be that both Assembler
and PL/I would have the same functionality. 

Kind regards - Terry

Terry Sambrooks
Director
KMS-IT Limited
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Dore, Sheffield, S17 3LA, UK

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