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SORT - Get Unique Records from a File

 
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Phantom
Data Mgmt Moderator
Data Mgmt Moderator


Joined: 07 Jan 2003
Posts: 1056
Topics: 91
Location: The Blue Planet
PostPosted: Thu Dec 01, 2005 9:00 am    Post subject: SORT - Get Unique Records from a File Reply with quote
How do I extract only Unique records from a dataset ?

This is often confused with "Eliminating Duplicates" from a dataset. Unique records are those which have only one occurrence in the file. Eliminating Duplicates will write both "Unique records" + "First instance of a duplicate" to the output.

The simplest way to extract Unique records is to use DFSORT's ICETOOL or Syncsort's SYNCTOOL

Code:

//*------------------------------------------------------*
//* Change the PGM to SYNCTOOL if you are using SYNCSORT *
//*------------------------------------------------------*
//R010   EXEC PGM=ICETOOL
//TOOLMSG  DD SYSOUT=*
//DFSMSG   DD SYSOUT=*
//IN       DD DSN=my.input.file,DISP=SHR
//OUT      DD DSN=my.output.file.unique,DISP=OLD
//TOOLIN   DD *
 SELECT FROM(IN) TO(OUT) ON(1,50,CH)  NODUPS
/*


Thanks,
Phantom
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Phantom
Data Mgmt Moderator
Data Mgmt Moderator


Joined: 07 Jan 2003
Posts: 1056
Topics: 91
Location: The Blue Planet
PostPosted: Thu Dec 01, 2005 9:13 am    Post subject: Reply with quote
Solution # 2: Using SORT
http://www.mvsforums.com/helpboards/viewtopic.php?p=714#714
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