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re:how will know whether the file is empty

 
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amarnath reddy
Warnings : 1

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Joined: 08 Feb 2006
Posts: 3

PostPosted: Thu Feb 09, 2006 3:39 pm    Post subject: re:how will know whether the file is empty
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hi all
i have a small doubt in vsam.
how will come to know that vsam file is empty or not.
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Rupesh.Kothari

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Joined: 27 Apr 2005
Posts: 464

PostPosted: Thu Feb 09, 2006 4:15 pm    Post subject: Re: re:how will know whether the file is empty
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Hi,

Submit the JCL

Code:
//SORTTST JOB (ACCT#),'SORT  ',NOTIFY=&SYSUID,CLASS=T,MSGCLASS=X   
 //STEP01  EXEC PGM=SORT                                           
 //SYSOUT   DD   SYSOUT=*                                           
 //SORTIN  DD DSN=VSAM File ,DISP=SHR             
 //SORTOUT DD DSN=Output file ,DISP=SHR                   
 //SYSIN   DD *                                                     
   OPTION COPY                                                     
   OUTFIL REMOVECC,NODETAIL,                                       
    TRAILER1=(COUNT=(M10,LENGTH=02))                               
 /*                                                                 
 //SYSUDUMP   DD SYSOUT=*                   


If output file contain 0 records it means fiel is empty.. icon_lol.gif

Hope this helps

Regards
Rupesh
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senthils

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Joined: 15 Nov 2005
Posts: 117
Location: Chennai, India

PostPosted: Thu Feb 09, 2006 5:00 pm    Post subject:
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Thats a nice answer Rupesh icon_lol.gif
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nuthan

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Joined: 26 Sep 2005
Posts: 146
Location: Bangalore

PostPosted: Thu Feb 09, 2006 7:59 pm    Post subject: Re: re:how will know whether the file is empty
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Hi,
U can use IDCAMS utility and in sys in dd * give PRINT COUNT(1) .
this will return a maxcc = 4 if it is a empty VSAM file.
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priyesh.agrawal

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Joined: 28 Mar 2005
Posts: 1452
Location: Chicago, IL

PostPosted: Thu Feb 09, 2006 10:07 pm    Post subject: Re: re:how will know whether the file is empty
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Would you like to see this SMART DFSORT Trick.

Regards,

Priyesh.
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Frank Yaeger

DFSORT Moderator


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

PostPosted: Thu Feb 09, 2006 10:13 pm    Post subject:
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Priyesh,

When you give a link to a Smart DFSORT Trick, you need to include the #tnn number at the end - otherwise the link goes to the top of the page rather than to the trick you actually want. I've edited your link above to include the #t10 needed to get to the trick you were trying to show.
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priyesh.agrawal

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Joined: 28 Mar 2005
Posts: 1452
Location: Chicago, IL

PostPosted: Thu Feb 09, 2006 10:20 pm    Post subject: Re: re:how will know whether the file is empty
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Thank You Frank...

Regards,

Priyesh.
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