IBM Mainframe Forum

by **electrox** » Thu Apr 28, 2011 7:03 am

The maximum limit for parm parameter is 100 characters ,when input length exceeds waht shall be done , I'm asked to use parm parameter to pass input?

by **MrSpock** » Thu Apr 28, 2011 7:16 am

A limit is a limit. Come up with another plan.

by **steve-myers** » Thu Apr 28, 2011 11:54 am

As Mr Spock says, a limit is a limit; you need another plan. I can think of several options. All have been used at one time or another.

Abbreviations. This often makes the option text more or less unintelligible, but ... You have to alter the program to use the abbreviations.
Provide an options dataset. The downside here is you can't use JCL symbols to form the option text, and you have to alter the program to use the dataset.

by **BillyBoyo** » Thu Apr 28, 2011 12:29 pm

If you have some options which are basically "static" you can combine approaches. Put the static options on a dataset, keep the varying options on the PARM (abbreviating as necessary, as Steve suggested). The extra code to work with both is minimal, and it would allow any paramaterisation of your paramameters to continue through the JCL.

As Mr Spock and Steve have indicated, you have absolutely zero chance of somehow finding a method to go beyond 100 on the parm itself.

by **electrox** » Fri Apr 29, 2011 4:52 pm

Thanks.. One of my trainee said some kind of Arith Code can be used along with Parm parameter when input limit exceeds than 100.He said only working people handle with this method.

by **BillyBoyo** » Fri Apr 29, 2011 5:16 pm

So, tell him to put-up-or-shut-up. If you find anything interesting, update us.

by **enrico-sorichetti** » Fri Apr 29, 2011 5:22 pm

Thanks.. One of my trainee said some kind of Arith Code can be used along with Parm parameter when input limit exceeds than 100.He said only working people handle with this method.

ok for the language barrier, but too much is too much ,
would You care to translate to an intelligible sentence!

anyway trying to submit a job/jcl with a parm longer than 100 chars will result in a jcl error

works

Select all

000001 //ENRICO1 JOB NOTIFY=&SYSUID,
000002 // REGION=0M,
000003 // MSGLEVEL=(1,1),CLASS=A,MSGCLASS=X
000004 //*
000005 //IEF EXEC PGM=IEFBR14,
=COLS> ----+----1----+----2----+----3----+----4----+----5----+----6----+----7--
000006 // PARM='12345678901234567890123456789012345678901234567890123456789012
000007 // 34567890123456789012345678901234567890'

does not ( jcl error)

Select all

000001 //ENRICO1 JOB NOTIFY=&SYSUID,
000002 // REGION=0M,
000003 // MSGLEVEL=(1,1),CLASS=A,MSGCLASS=X
000004 //*
000005 //IEF EXEC PGM=IEFBR14,
=COLS> ----+----1----+----2----+----3----+----4----+----5----+----6----+----7--
000006 // PARM='12345678901234567890123456789012345678901234567890123456789012
000007 // 345678901234567890123456789012345678901'

look out for the long parm continuation rule ...
fill the first line up to column 71
start the second line at column 16

by **enrico-sorichetti** » Fri Apr 29, 2011 5:38 pm

follow on...
I forgot to post ...

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- 29 APR 2011 JOB EXECUTION DATE
- 7 CARDS READ
- 24 SYSOUT PRINT RECORDS
- 0 SYSOUT PUNCH RECORDS
- 1 SYSOUT SPOOL KBYTES
- 0.00 MINUTES EXECUTION TIME
1 //ENRICO1 JOB NOTIFY=&SYSUID,
// REGION=0M,
// MSGLEVEL=(1,1),CLASS=A,MSGCLASS=X
//*
IEFC653I SUBSTITUTION JCL - NOTIFY=ENRICO,REGION=0M,MSGLEVEL=(1,1),CL
2 //IEF EXEC PGM=IEFBR14,
// PARM='123456789012345678901234567890123456789012345678901234567890
// 345678901234567890123456789012345678901'
STMT NO. MESSAGE
-
2 IEF642I EXCESSIVE PARAMETER LENGTH IN THE PARM FIELD

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