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JCL Overriding.

 
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YSMVS
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Joined: 19 May 2004
Posts: 51
Topics: 25
Location: My House
PostPosted: Thu Feb 03, 2005 12:51 pm    Post subject: JCL Overriding. Reply with quote
Hi,

My proc is like this

Code:
//PROC1 PROC PARMLIB=,           
//         INPUT1='NULLFILE',                     
//         INPUT2='NULLFILE',                 
//         INPUT3='NULLFILE',                 
//         INPUT4='NULLFILE',

.....
//STEP1 EXEC PGM=PGM1,
//DDNAME  DD  DSN=&INPUT1,DISP=SHR
//         DD  DSN=&INPUT2,DISP=SHR
//         DD  DSN=&INPUT3,DISP=SHR
//         DD  DSN=&INPUT4,DISP=SHR

                   
               


MY JCL is like this, I wanted to override only input 2

Code:

//JS0100  EXEC PROC1,                           
//        INPUT1='MY.DATASET1', 
//*       INPUT2='MY.DATASET2', 
//         INPUT3='MY.DATASET3', 
//         INPUT4='MY.DATASET4', 


When I run this JCL only the data in first file gets processed and those in 3 and 4 are getting ignored , eventhough the datsets are getting overridden correctly. Why is it so ?

Thanks,
YSMVS.
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12375
Topics: 75
Location: San Jose
PostPosted: Thu Feb 03, 2005 1:23 pm    Post subject: Reply with quote
Ysmvs,

Check this link for rule for concatenating datasets with dummy/nullfile

NULLFILE Specifies a dummy data set. NULLFILE has the same effect as coding the DD DUMMY parameter.

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IEA2B631/12.1.6.7?SHELF=&DT=20030423085347&CASE=

Hope this helps...

Cheers

Kolusu
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YSMVS
Beginner


Joined: 19 May 2004
Posts: 51
Topics: 25
Location: My House
PostPosted: Thu Feb 03, 2005 6:33 pm    Post subject: Reply with quote
Thanks Kolusu.

That was a good learning experience.

regards,
YSMVS
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YSMVS
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