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sort var2 in ESDS without changing var1 positions

 
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murmohk1

Senior Member


Joined: 29 Jun 2006
Posts: 1439
Location: Bangalore,India

PostPosted: Mon Dec 04, 2006 4:21 pm    Post subject: sort var2 in ESDS without changing var1 positions
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Hi,

I have a ESDS like this -

VAR1 VAR2
----------------
005 a
005 b
001 b
001 a

004 a
004 b
002 a
002 b

VAR1 has duplicate records. whereas VAR2 has unique value for the corresponding VAR1. Also note that VAR1 is stored in random order.

Now my requirement is to sort var2 without effecting the var1 positions (like internal sorting for VAR1 records). I had highlighted records in RED above which needs to be sorted.


Resultant file should look like -

VAR1 VAR2
----------------
005 a
005 b
001 a
001 b

004 a
004 b
002 a
002 b



Regards & Thanks,
Mohan
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William Thompson

Global Moderator


Joined: 18 Nov 2006
Posts: 3158
Location: Tucson AZ

PostPosted: Mon Dec 04, 2006 4:26 pm    Post subject:
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Sort on var2 while telling sort to keep the original sequence for equals.
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Frank Yaeger

DFSORT Moderator


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

PostPosted: Mon Dec 04, 2006 10:32 pm    Post subject:
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Mohan,

Here's a DFSORT job that will do what you asked for. I assumed your input file has RECFM=FB and LRECL=80, but you can change the job appropriately for other attributes.

Code:

//S1    EXEC  PGM=ICEMAN
//SYSOUT    DD  SYSOUT=*
//SORTIN DD *
005     a
005     b
001     b
001     a
004     a
004     b
002     a
002     b
/*
//SORTOUT DD SYSOUT=*
//SYSIN    DD    *
  INREC IFTHEN=(WHEN=INIT,OVERLAY=(81:SEQNUM,8,ZD,
                   97:SEQNUM,8,ZD,RESTART=(1,3))),
        IFTHEN=(WHEN=(97,8,ZD,EQ,+1),
                OVERLAY=(81:SEQNUM,8,ZD)),
        IFTHEN=(WHEN=NONE,
                OVERLAY=(89:SEQNUM,8,ZD,
                         81:81,8,ZD,SUB,89,8,ZD,M11,LENGTH=8))
  SORT FIELDS=(81,8,ZD,A,9,1,CH,A)
  OUTREC BUILD=(1,80)
/*
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Frank Yaeger

DFSORT Moderator


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

PostPosted: Mon Dec 04, 2006 10:34 pm    Post subject:
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Quote:
Sort on var2 while telling sort to keep the original sequence for equals.


William,

This is NOT a solution to the stated problem (I'm not even sure what you mean by this). Please test your "solutions" to make sure they are valid before posting them to avoid confusing people.
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murmohk1

Senior Member


Joined: 29 Jun 2006
Posts: 1439
Location: Bangalore,India

PostPosted: Tue Dec 05, 2006 8:07 am    Post subject:
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Thanks for the quick solution, Frank.
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