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converting spaces to zeros

 
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PostPosted: Tue Oct 12, 2004 10:29 am    Post subject: converting spaces to zeros Reply with quote
Hi

i have a sequential file (FB) of length 270. The field starting from position 168 is defined as S9(3) COMP-3 and for certain records - this field contain spaces. i need to convert the spaces to zeros for that field for those records.

is it possible to do it by using DFSORT?
Think TRAN=ALTSEQ can convert zeros to spaces but not vice versa.

Thanks
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kolusu
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PostPosted: Tue Oct 12, 2004 10:55 am    Post subject: Reply with quote
New user,

The following JCL will give you the desired results. We use a change command to change the spaces(x'40') to zeroes(x'00').

Code:

//STEP0100 EXEC PGM=SORT         
//SYSOUT   DD SYSOUT=*           
//SORTIN   DD DSN=YOUR INPUT FILE,
//            DISP=SHR
//SORTOUT  DD DSN=YOUR OUTPUT FILE,
//            DISP=(NEW,CATLG,DELETE),
//            UNIT=SYSDA,
//            SPACE=(CYL,(X,Y),RLSE)
//SYSIN    DD *     
  SORT FIELDS=COPY   
  OUTREC FIELDS=(001,167,                          $ FIRST 167 BYTES AS IS
                 168,2,CHANGE=(2,X'4040',X'000C'), $ CHANGE SPACE TO ZERO
                               NOMATCH=(168,2)     $ PUT IF VALID PD
                 170,101)                          $ REST OF THE FIELDS
/*


Hope this helps...

Cheers

kolusu
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Frank Yaeger
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Joined: 02 Dec 2002
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Location: San Jose
PostPosted: Tue Oct 12, 2004 11:51 am    Post subject: Reply with quote
Quote:
is it possible to do it by using DFSORT?
Think TRAN=ALTSEQ can convert zeros to spaces but not vice versa.


DFSORT's TRAN=ALTSEQ can change X'00's to X'40's and X'40's to X'00's. In fact, it can change any hex character to any other hex character.

But as Kolusu pointed out, changing X'4040' to X'0000' will NOT give you the correct type of zeros for your S9(3) COMP-3 since that's a 2-byte PD field for which you need X'000C' to correctly represent a 0 value. Kolusu's DFSORT job uses CHANGE to give you the correct type of 0.

For a table showing the equivalent DFSORT fields for COBOL data types, see the "What are the equivalent DFSORT formats for various COBOL data types?" Ask Professor Sort item at:

http://www.ibm.com/servers/storage/support/software/sort/mvs/professor_sort/
_________________
Frank Yaeger - DFSORT Development Team (IBM)
Specialties: JOINKEYS, FINDREP, WHEN=GROUP, ICETOOL, Symbols, Migration
DFSORT is on the Web at:
www.ibm.com/storage/dfsort

Last edited by Frank Yaeger on Fri Aug 25, 2006 6:26 pm; edited 1 time in total
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PostPosted: Fri Oct 15, 2004 12:11 pm    Post subject: Reply with quote
Thanks a lot Frank and Kolusu.

it really helped

regards
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PostPosted: Tue Oct 26, 2004 7:13 am    Post subject: Reply with quote
Hi Kolusu

i am trying to use the same SYSIN card to convert SPACES,LOW-VALUES and HIGH VALUES to zeros for the same field (starting 168).

in the OUTREC, i am stating
OUTREC FIELDS=(001,167,CHANGE=(2,(X'4040' OR X'FFFF' OR X'0000'),X'000C'),NOMATCH=(168,2),170,101)

But seems - it is incorrect.

Could you please help to get the correct syntax

Thanks
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kolusu
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PostPosted: Tue Oct 26, 2004 9:34 am    Post subject: Reply with quote
New user,

Your syntax is totally wrong.

try this

Code:

 OUTREC FIELDS=(001,167,CHANGE=(2,X'4040',X'000C',
                                  X'FFFF',X'000C',
                                  X'0000',X'000C'),
                        NOMATCH=(168,2),170,101)



Check this link which explains about the CHANGE parm on OUTREC.(scroll half way)

http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/ICE1CA00/3.13?DT=20031124143823

Hope this helps...

Cheers

kolusu
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