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How to empty a file without deleting it?

 
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prog_mario
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Joined: 08 Sep 2007
Posts: 86
Topics: 27
PostPosted: Tue Sep 13, 2011 6:43 am    Post subject: How to empty a file without deleting it? Reply with quote
Hi everybody, I have a job step in which I need to delete the content of da dataset to let it empty.
Is it possible to do that using IDCAMS or IEFBR14?
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kolusu
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Joined: 26 Nov 2002
Posts: 12375
Topics: 75
Location: San Jose
PostPosted: Tue Sep 13, 2011 10:20 am    Post subject: Reply with quote
prog_mario,

You can copy a dummy file on to your file to empty out the contents. You can use IDCAMS , SORT , rexx,....

ex:

Code:
             
//STEP0100 EXEC PGM=SORT                               
//SYSOUT   DD SYSOUT=*                                 
//SORTIN   DD DUMMY,DCB=(LRECL=nnn,RECFM=FB)           
//SORTOUT  DD DSN=Your files that needs to be emptied,DISP=SHR
//SYSIN    DD *                                         
  OPTION COPY                                           
//*


or

Code:

//STEP0100 EXEC PGM=IDCAMS                             
//SYSPRINT DD SYSOUT=*                                 
//IN       DD DUMMY,DCB=(LRECL=nnn,RECFM=FB)           
//OUT      DD DSN=Your files that needs to be emptied,DISP=SHR
//SYSIN    DD *                                         
  REPRO INFILE(IN) OUTFILE(OUT)                         
//*



For more examples check this topic

http://www.mvsforums.com/helpboards/viewtopic.php?t=2729&highlight=eof
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