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quanzhong
New User
Joined: 12 Aug 2008 Posts: 46 Location: china
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eg.
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//SORTIN DD DISP=SHR,DSN=A
//SORTOUT DD DISP=SHR,DSN=A
//SYSIN DD *
option copy
outrec ifthen=(when=(condition),overlay=())
/*
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for small files, the result is OK.
for large files, sorting completed, return code is 0, but number of record in output file is much less.
does anyone know the difference? |
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vasanthz
Global Moderator
Joined: 28 Aug 2007 Posts: 1742 Location: Tirupur, India
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Hello,
Quote: |
For a copy application, the SORTIN data set should not be the same as the SORTOUT data set or any OUTFIL data set because this can cause lost or incorrect data or unpredictable results.
For a sort application, the SORTIN data set should not be the same as any SORTWKdd data set because this can cause lost or incorrect data or unpredictable results. The SORTIN data set can be the same as the SORTOUT data set or an OUTFIL data set, but this situation can lead to the loss of the data set if the sort application does not end successfully. |
Simply said, don't use the same file as Input and Output.
ibmmainframes.com/about56709.html
Hope it helps, |
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steve-myers
Active Member
Joined: 30 Nov 2013 Posts: 917 Location: The Universe
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For a sorting application, the input and output data set can specify the same data set. It is not recommended, but it will work because sort reads the entire input data set before it writes an output record.
For a copy application it will not work, as Vasanth already noted. |
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