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SORT & SPLIT File based on dynamic key value

 
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viswanathan
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Joined: 17 Jan 2006
Posts: 26
Topics: 13

PostPosted: Thu Sep 24, 2015 9:46 am    Post subject: SORT & SPLIT File based on dynamic key value Reply with quote

Hi Friends,

Need your help in solving JCL Sort & Split requirement.

--> I have an input file of LRECL = 750.

--> Key field is from position 1 to 8 (Packed decimal)

--> Maximum of 3 key values can occur in a file (values are dynamic)

--> File will be sorted on this key

--> Need to write the records to three different files based on the key values.

Sample Input File:
Code:

20014567 Rec 1
20014567 Rec 1
20014567 Rec 1
20014577 Rec 1
20014577 Rec 1
20014577 Rec 1
20014577 Rec 1
20014587 Rec 1


Output File 1:
Code:

20014567 Rec 1
20014567 Rec 1
20014567 Rec 1

Output File 2:
Code:

20014577 Rec 1
20014577 Rec 1
20014577 Rec 1
20014577 Rec 1

Output File 3:
Code:

20014587 Rec 1
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12358
Topics: 75
Location: San Jose

PostPosted: Thu Sep 24, 2015 10:06 am    Post subject: Reply with quote

viswanathan,

It is quite simple with WHEN=GROUP. You just add a file ID number at the end of the record and validate that field to split into multiple files.

I assumed that your input is unsorted and you need to sort the file and then perform the split. If your input file is already sorted then simply replace the sort fields= statement with OPTION COPY.

Here is a DFSORT JCL which will give you the desired results.

Code:

//STEP0100 EXEC PGM=SORT                                   
//SYSOUT   DD SYSOUT=*                                     
//SORTIN   DD DISP=SHR,DSN=Your Input FB 750 Byte file
//KEY1     DD SYSOUT=*                                     
//KEY2     DD SYSOUT=*                                     
//KEY3     DD SYSOUT=*                                     
//SYSIN    DD *                                             
  SORT FIELDS=(1,8,PD,A)                                   
  OUTREC IFTHEN=(WHEN=GROUP,KEYBEGIN=(1,8),PUSH=(751:ID=1))
  OUTFIL FNAMES=KEY1,BUILD=(1,750),INCLUDE=(751,1,ZD,EQ,1) 
  OUTFIL FNAMES=KEY2,BUILD=(1,750),INCLUDE=(751,1,ZD,EQ,2) 
  OUTFIL FNAMES=KEY3,BUILD=(1,750),SAVE                     
//*

_________________
Kolusu - DFSORT Development Team (IBM)
DFSORT is on the Web at:
www.ibm.com/storage/dfsort

www.linkedin.com/in/kolusu
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viswanathan
Beginner


Joined: 17 Jan 2006
Posts: 26
Topics: 13

PostPosted: Thu Sep 24, 2015 10:43 am    Post subject: Reply with quote

Hi Kolusu,

Thank you so much for the complete JCL. It worked well!

I didn't know that with just one keybegin we could split a file into three ways. A learning for me.

Thanks again!
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