> -----Ursprungligt meddelande----- > Från: IBM Mainframe Discussion List > [mailto:ibm-m...@bama.ua.edu] För Paul Gilmartin > Skickat: den 2 november 2009 20:56 > Till: IBM-MAIN@bama.ua.edu > Ämne: Re: SV: An Alternative Modest PARM Proposal > > On Mon, 2 Nov 2009 19:45:43 +0100, Thomas Berg wrote: > > > >Well, the caos is not primarily feared based on "API" format. I was > >thinking of Job JCLs that production planners, those who restart and > >corrects jobs, application programmers/designers etc; all those who > >deals with parms that have application dependant values that > define and > >designate the workings of the job "webs". > > > >Imagine that an important application job abends in the > middle of the night. > >The application responsible is waked by a telephone from one of the > >nights operators asking for instructions. And the > instructions involve parm values... > > > That's the lesser hazard. The greater is that the job runs > with a truncated PARM and yields incorrect results, possibly > undetected. > For that reason, PARMX is probably a good idea. Jobs that > have not been tested with long parm can continue to use PARM > and produce JCL errors, readily diagonsed, with oversize values. > > I might even advocate a new JCL command, "//L EXECU PGM=...", > where EXECU invokes the program in the unauthorized state > with long PARM allowed. EXEC would continue to operate as it > does, respecting the AC= attribute and limiting the PARM to > 100 characters. > > -- gil >
If we really go the "new syntax road", I liked the suggestion, by someone I don't remember for the moment, that we introduce a new JCL operand: // PARM '.......' I like that partly beacuse of possibility to have a "concatenate" function like: // PARM 'part 1 .............................................' // PARM 'part 2 .............................................' // PARM 'part 3 .............................................' etc. An easy way to input a long parm (in JCL). *BUT*, we still we have the problem of backward incompatibility regardless of the input format... Regards, Thomas Berg __________________________________________ Thomas Berg Specialist IT-U SWEDBANK ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
