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fetch 1st and 3rd record in a file


IBM Mainframe Forums -> JCL & VSAM
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charavind17

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Joined: 24 Sep 2008
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Location: chennai

PostPosted: Tue Oct 21, 2008 7:49 pm
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i have file in which i want to fetch 1st 3rd records using jcl..
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expat

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Joined: 14 Mar 2007
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PostPosted: Tue Oct 21, 2008 7:54 pm
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Using which program in your JCL, anything specific, or any utility that can do that ?

Is the file a VSAM file or non VSAM, tape or DASD ?
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charavind17

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PostPosted: Tue Oct 21, 2008 7:58 pm
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VSAM file..any utility is also ok..
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expat

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PostPosted: Tue Oct 21, 2008 8:01 pm
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From experience, you can either use IDCAMS or SORT.

This has been discussed a few times, selecting certain records, so may I suggest a search of the forum or google and then some trial and error, and let us know which utility you have chosen and any problems that you need help with.
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ramsri

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Joined: 18 Oct 2008
Posts: 380
Location: India

PostPosted: Tue Oct 21, 2008 8:39 pm
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charavind17,

The below might help...

Code:

//STEP0001 EXEC PGM=SORT
//SORTOUT  DD SYSOUT=* 
//SYSOUT   DD SYSOUT=* 
//SORTIN   DD *         
1                       
2                       
3                       
4                       
5                       
6                       
7                       
//SYSIN    DD *         
 SORT FIELDS=COPY       
 OUTFIL SAMPLE=2       
/*                     


Output:

Code:

1
3
5
7


Thanks.
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martin9

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Joined: 01 Mar 2006
Posts: 290
Location: Basel, Switzerland

PostPosted: Tue Oct 21, 2008 8:57 pm
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Hy charavind17,

it's not that difficult: make an IDCAMS REPRO

//* allocate first an empty file
//REPRO EXEC PGM=IDCAMS
//SYSPRINT DD SYSOUT=*
//IN1 DD DSN=INPUT,DISP=SHR
//OUT1 DD DSN=OUTPUT,DISP=MOD
//SYSIN DD *
REPRO INFILE(IN1) OUTFILE(OUT1) COUNT(1)
REPRO INFILE(IN1) OUTFILE(OUT1) COUNT(1) SKIP(2)
/*

regards,
martin9
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ramsri

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Joined: 18 Oct 2008
Posts: 380
Location: India

PostPosted: Tue Oct 21, 2008 9:18 pm
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martin9,

I tried IDCAMS approach but it gave output like below:

Code:

1
3


Thanks.
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Frank Yaeger

DFSORT Developer


Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA

PostPosted: Tue Oct 21, 2008 9:18 pm
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You can do this kind of thing quite easily using the new SUBSET operator of DFSORT's ICETOOL available with z/OS DFSORT V1R5 PTF UK90013 (July, 2008) like this:

Code:

//S1  EXEC  PGM=ICETOOL                                           
//TOOLMSG   DD  SYSOUT=*                                           
//DFSMSG    DD  SYSOUT=*                                           
//IN DD DSN=...  input file                                       
//OUT DD DSN=...  output file         
//TOOLIN DD *                                                     
SUBSET FROM(IN) TO(OUT) KEEP INPUT RRN(1) RRN(3)
/*     



For complete details on the new SUBSET function and the other new functions available with PTF UK90013, see:

Use [URL] BBCode for External Links
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Arun Raj

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Joined: 17 Oct 2006
Posts: 2481
Location: @my desk

PostPosted: Tue Oct 21, 2008 9:24 pm
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Ramsri,
Quote:
i have file in which i want to fetch 1st 3rd records using jcl..

It's not quite clear which one do you want.

1) 1st and 3rd records.
2) 1st 3 records.

In either case you can achieve by experimenting on what you have right now. Goodluck.
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ramsri

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Joined: 18 Oct 2008
Posts: 380
Location: India

PostPosted: Tue Oct 21, 2008 9:27 pm
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Hi, arcvns.

I posted the SORT solutio and tried the IDCAMS to just check icon_smile.gif

I prefer using SORT only.

Thanks.
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martin9

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Joined: 01 Mar 2006
Posts: 290
Location: Basel, Switzerland

PostPosted: Tue Oct 21, 2008 9:34 pm
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Hy ramsri,

it's just what charavind17 actually wants...

"i have file in which i want to fetch 1st 3rd records using jcl.."

now with my example, there is a new file with the first and the
third record. like in the SORT from Frank Yaeger, you will also get
a new file with the first and third record.
What is now really the intention of charavind17?????????????????

regards,
martin9
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Frank Yaeger

DFSORT Developer


Joined: 15 Feb 2005
Posts: 7129
Location: San Jose, CA

PostPosted: Tue Oct 21, 2008 9:47 pm
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The Subject line seems clear:

Quote:
fetch 1st and 3rd record in a file
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