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Can we have multiple conditions for the CHANGE statement

 
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Pknair
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Joined: 29 Nov 2005
Posts: 26
Topics: 9
PostPosted: Fri Dec 09, 2005 10:49 am    Post subject: Can we have multiple conditions for the CHANGE statement Reply with quote
Hi

I am trying to do a sort step whcih can add columns based on 2 fields. The 2 fields are at possitions 40,1,CH and 212,2,BI.

The condition is this
Code:

IF (40,1) = 'P' Then
    IF (212,2) = X'0002' or X'0001' Then
        MOVE (226,4) TO the position 33
    ELSE
        MOVE X'00000000000C' TO the position 33
    END-IF
END-IF

I tried to do the below Overlay statement but I feel it is not supported by SYNCSORT. We do not have DFSORT. What I would like to know is another alternative to the below. I understand that I could do it easily by splittig the process into 2 SORTs but is there a way I could do it with one.
Code:

SORT FIELDS=(1,13,CH,A)                                               
INREC OVERLAY=(1,5,C' ',               
         17,3,C'  ',                   
         45,2,C'   ',                 
         47,2,                       
         20,10,                       
         X'00000001',           
         40,1,CHANGE=(2,C'P',212,2),NOMATCH=(X'0000'),   
         33:33,2,CHANGE=(6,X'0004',222,4,X'0001',222,4),
               NOMATCH=(X'00000000000C'))             


Thanks
PK
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Frank Yaeger
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Joined: 02 Dec 2002
Posts: 1618
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PostPosted: Fri Dec 09, 2005 11:35 am    Post subject: Reply with quote
Quote:
I tried to do the below Overlay statement but I feel it is not supported by SYNCSORT.


With DFSORT, you could do it with IFTHEN. But only DFSORT supports IFTHEN and OVERLAY. Syncsort does not support these features.
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Frank Yaeger - DFSORT Development Team (IBM)
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
DFSORT is on the Web at:
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kolusu
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Joined: 26 Nov 2002
Posts: 12375
Topics: 75
Location: San Jose
PostPosted: Fri Dec 09, 2005 11:38 am    Post subject: Reply with quote
pknair,

Syncsort does not support change on multiple fields. So you need to re-arrange them as 1 field and then apply the change parm.


Try this . I assumed that you input file has the following attributes
Code:

LRECL=250,RECFM=FB


I also assumed that you wanted to change ONLY 4 bytes at position 33, since you are overlaying the contents from pos 224 for only 4 bytes.

We add the contents at 40 for a length of 1 and 212 for a length of 2 at the end of every record using inrec fields.

Now 'P' in hex is d7, so we validate both the fields in hex and use the change operator.

Code:

//SYSIN     DD *                                           
 SORT FIELDS=COPY                                           
 INREC FIELDS=(01,250,                                       
               40,1,                                         
               212,2)

 OUTREC FIELDS=(1,250,                                       
                251,3,CHANGE=(4,X'D70001',X'11111111',       
                                X'D70002',X'11111111'),       
                                NOMATCH=(X'0000000C'))       
 OUTFIL OUTREC=(1,32,                                         
                33:251,4,CHANGE=(4,X'0000000C',X'0000000C'),   
                                 NOMATCH=(226,4),
                37,214)             
/*                                                       


Hope this helps...

Cheers

Kolusu
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