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VSAM file empty check

 
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lekshmi_ci

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Joined: 14 Mar 2007
Posts: 60
Location: Thiruvananthapuram

PostPosted: Wed May 14, 2008 6:03 pm    Post subject: VSAM file empty check
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I want to check whether a VSAM file is empty or not. Depending on the successful execution of that step I need to continue with the below steps.
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mmwife

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Joined: 30 May 2003
Posts: 1592

PostPosted: Wed May 14, 2008 6:10 pm    Post subject:
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Please provide us with some JCL, error msgs, etc. Hurry up, this is urgent!
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superk

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Joined: 26 Apr 2004
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PostPosted: Wed May 14, 2008 6:10 pm    Post subject: Reply to: VSAM file empty check
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The method posted here is the typical method used.
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lekshmi_ci

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Joined: 14 Mar 2007
Posts: 60
Location: Thiruvananthapuram

PostPosted: Wed May 14, 2008 6:13 pm    Post subject: Reply to: VSAM file empty check
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PRINT INFILE(input) -
CHARACTER COUNT(1)
I used the above to check for empty file.
But since the file is empty it is getting error code 160 icon_sad.gif
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CICS Guy

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Joined: 18 Jul 2007
Posts: 2150
Location: At my coffee table

PostPosted: Wed May 14, 2008 6:36 pm    Post subject: Re: Reply to: VSAM file empty check
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lekshmi_ci wrote:
PRINT INFILE(input) -
CHARACTER COUNT(1)
I used the above to check for empty file.
But since the file is empty it is getting error code 160 icon_sad.gif
Please post your sysins and sysouts......
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Frank Yaeger

DFSORT Moderator


Joined: 15 Feb 2005
Posts: 7130
Location: San Jose, CA

PostPosted: Wed May 14, 2008 8:59 pm    Post subject:
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lekshmi_ci,

If you want a DFSORT solution rather than an IDCAMS solution (after all you did post in the DFSORT Fourm), you can use the technique described in the "Set RC=12 or RC=4 if file is empty, has more than n records, etc" Smart DFSORT Trick at:

http://www.ibm.com/servers/storage/support/software/sort/mvs/tricks/

However, you'll probably need to modify the job slightly like this to allow DFSORT to accept an empty VSAM data set:

Code:

//STEP1 EXEC PGM=ICETOOL
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//IN DD DSN=...  VSAM data set
//TOOLIN DD *
* SET RC=12 IF THE 'IN' DATA SET IS EMPTY, OR
* SET RC=0 IF THE 'IN' DATA SET IS NOT EMPTY
COUNT FROM(IN) EMPTY USING(CTL1)
/*
//CTL1CNTL DD *
   OPTION VSAMEMT
/*


I suspect the IDCAMS job is NOT accepting the empty VSAM data set.
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