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iebgener and input data set name

 
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somunote

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Joined: 23 Jan 2010
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PostPosted: Thu Mar 04, 2010 8:51 pm    Post subject: iebgener and input data set name
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Hi,
Is it possible for iebgener to receive the input data set name dynamically, then read it and copy it to the output file?
I don't have the data set name explicitly on the jcl. I have the name of the file I want to read in another data set.
Thanks.
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superk

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PostPosted: Thu Mar 04, 2010 9:03 pm    Post subject: Reply to: iebgener and input data set name
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No. JCL does not support the concept of a dynamic file name. You'll have to do this process from inside a program, or generate the JCL with the proper dataset name dynamically.

Update:

Just a thought, but have you considered POSSIBLY using IDCAMS to do this? You can REPRO to/from a dataset name to/from a DD name.
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somunote

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PostPosted: Thu Mar 04, 2010 9:07 pm    Post subject:
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Do you mean with a repro?
Wouldn't I have to explicitly declare the input file name on the jcl anyway?
Thanks.
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Anuj Dhawan

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PostPosted: Thu Mar 04, 2010 9:21 pm    Post subject:
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Did you consider using symbolic parameters, if iebgener resides in some PROC? By the way, "dynamically", in the context of your question leave many other questions...some more explanation about it might help us.
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expat

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PostPosted: Thu Mar 04, 2010 9:28 pm    Post subject:
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Maybe this will give you a clue or two
Code:
//IEBGENER EXEC PGM=IEBGENER 
//SYSOUT   DD SYSOUT=*
//SYSPRINT DD SYSOUT=*
//SYSUT2   DD DSN=&&TEMP,DISP=(,PASS),                           
//            SPACE=(TRK,(2,2),RLSE),                           
//            RECFM=FB,LRECL=80                                 
//SYSUT1   DD *                                                 
dataset_name                  -
/*                                                               
//*                                                             
//IDCAMS01 EXEC PGM=IDCAMS                                       
//SYSPRINT DD SYSOUT=*                                           
//SYSIN    DD *                                                 
 PARM MARGINS(1 80)                                             
 LISTC ENT(                                                     -
//         DD DSN=&&TEMP,DISP=(OLD,DELETE)                       
//         DD *
 )                                                               
/*
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jctgf
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PostPosted: Fri Mar 05, 2010 4:11 am    Post subject:
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Hi,
I used repro INDATASET and it worked great.
with this command the file can be read without being declared in the jcl.
all one has to do is to created a card that will be used as idcams sysin.
Code:

//idcams exec pgm=idcams
//fileout dd dsn=...
//sysin dd *
 repro indataset('hello') outfile(fileout)

thanks.
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expat

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PostPosted: Fri Mar 05, 2010 12:31 pm    Post subject:
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In fact, here is a complete solution as I have already used this myself.
The dataset with the dataset name is read by the SORT step and the IDCAMS card is generated and then IDCAMS does the copy
Code:
//BUILDER  EXEC  PGM=SORT                         
//SYSOUT   DD SYSOUT=*                             
//SORTIN   DD DSN=dataset with the name in it ,DISP=SHR
//SORTOUT  DD DSN=&&TEMP001,DISP=(,PASS,DELETE),   
//            RECFM=FB,LRECL=80,                   
//            SPACE=(CYL,(25,25),RLSE)             
//SYSIN    DD *                                   
 OPTION COPY                                     
 OUTFIL  BUILD=(C' IDS(',1,44,1X,C') -',80:X)   
/*                                                 
//*                                               
//IDCAMS   EXEC PGM=IDCAMS                         
//SYSPRINT DD SYSOUT=*                             
//OFILE    DD SYSOUT=*                             
//SYSIN    DD *                                   
 PARM MARGINS(1 80)
 REPRO -                                           
//         DD DSN=&&TEMP001,DISP=SHR               
//         DD *                                   
 OFILE(OFILE)                                     
/*
//
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somunote

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PostPosted: Fri Mar 05, 2010 10:03 pm    Post subject:
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expat,
I hadn't understood your first reply but that's exactly what I did.
good to know I did it right.
thanks.
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