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SYNCSORT Comparing two files with more than 1 condition


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Aniyaa

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Joined: 07 Dec 2007
Posts: 26
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PostPosted: Wed Jun 04, 2008 4:16 pm
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Please let me know if the following can be done using SYNCSORT.

I have 2 files with 3 columns each... for input
They are

File 1

Col1 Col2 Col3
1 E1 A1
2 E2 A2
3 E3 A3

File 2

Col1 Col2 Col3
1 E1 A1
3 E4 A4
7 E7 E7


Then I need the output file to be

Col1 Col2 Col3 Col4 Col5
3 E3 A3 E4 A4

That is output file should contain only , if Col1 of File 1 = Col1 of File2 and (Col2 or Col3) of File 1 not = (Col2 or col3) of File 2 ...

as you can see the output file should contain columns from both file1 and file 2.
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Manuneedhi K

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PostPosted: Wed Jun 04, 2008 4:48 pm
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Try this code.
Code:

//S1 EXEC PGM=SORT                           
//SORTMSG DD SYSOUT=*                         
//DFSMSG DD SYSOUT=*                         
//SYSOUT DD SYSOUT=*                         
//SORTJNF1 DD *                               
1 E1 A1                                       
2 E2 A2                                       
3 E3 A3                                       
//SORTJNF2 DD *                               
1 E1 A1                                       
3 E4 A4                                       
7 E7 E7                                       
//MYOUT DD DSN=USERID.SORTIN,DISP=SHR       
//SYSIN DD *                                 
  OPTION COPY                                 
  JOINKEYS FILES=F1,FIELDS=(1,01,D)           
  JOINKEYS FILES=F2,FIELDS=(1,01,D)           
  REFORMAT FIELDS=(F1:1,80,F2:1,80)           
   OUTFIL FNAMES=MYOUT                           
   OUTREC FIELDS=(1,7,X,83,7,65X)                 
 /*                                               
 //S2 EXEC PGM=SORT                               
 //SORTMSG DD SYSOUT=*                           
 //DFSMSG DD SYSOUT=*                             
 //SYSOUT DD SYSOUT=*                             
 //SORTIN DD DSN=USERID.SORTIN,DISP=SHR         
 //SORTOUT DD DSN=USERID.SORTOUT,DISP=SHR       
 //SYSIN DD *                                     
   SORT FIELDS=COPY                               
   INCLUDE COND=((3,2,CH,NE,9,2,CH),OR,           
                 (6,2,CH,NE,12,2,CH))             
 /*                                               
 //SYSOUT DD SYSOUT=*                             
 //SYSPRINT DD SYSOUT=*


Note: I assumed the LRECL of the file as 80
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Aniyaa

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PostPosted: Wed Jun 04, 2008 5:10 pm
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Hi , thanks for your solution..
can you pls let me know what X stands for in the below line..

OUTREC FIELDS=(1,7,X,83,7,65X)
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sril.krishy

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Joined: 30 Jul 2005
Posts: 183
Location: hyderabad

PostPosted: Wed Jun 04, 2008 5:12 pm
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Aniyaa,
Check the below code.

Code:

//S1       EXEC  PGM=SORT                               
//TOOLMSG  DD SYSOUT=*                                 
//DFSMSG   DD SYSOUT=*                                 
//SYSOUT   DD SYSOUT=*                                 
//SORTJNF1 DD *                                         
1 E1 A1                                                 
2 E2 A2                                                 
3 E3 A3                                                 
//SORTJNF2 DD *                                         
1 E1 A1                                                 
3 E4 A4                                                 
7 E7 E7                                                 
//MYOUT    DD SYSOUT=*                                 
//SYSIN    DD *                                         
  JOINKEYS FILES=F1,FIELDS=(01,01,A)                   
  JOINKEYS FILES=F2,FIELDS=(01,01,A)                   
  REFORMAT FIELDS=(F1:1,7,F2:1,7)                       
  SORT FIELDS=COPY                                     
  OUTFIL FNAMES=MYOUT,INCLUDE=((3,2,CH,NE,10,2,CH),AND,
                      (6,2,CH,NE,13,2,CH)),             
  OUTREC=(1,7,1X,10,5,80:X)                             


Thanks
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0d311

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PostPosted: Wed Jun 04, 2008 5:21 pm
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Aniyaa wrote:
Hi , thanks for your solution..
can you pls let me know what X stands for in the below line..

OUTREC FIELDS=(1,7,X,83,7,65X)


'X' stands for space.
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Aniyaa

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Posts: 26
Location: Bangalore

PostPosted: Thu Jun 05, 2008 11:13 am
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Hi,

Thanks a lot for all your suggestions . I got the solution right.

Now I have two choices , I can implement the above using a cobol program or using a sort(as you have suggested above).

Which would be better , considering there would be around 60,000 to 70,000 records in each of the input files.
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6250
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PostPosted: Thu Jun 05, 2008 12:30 pm
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Well,

Run two JOBs one using above sorts & other with the program, check for CPU consumption. Try to run both the JOBs at the same time.
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dick scherrer

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PostPosted: Thu Jun 05, 2008 7:46 pm
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Hello,

Quote:
Which would be better , considering there would be around 60,000 to 70,000 records in each of the input files.
This volume should not be an issue either way.

Quote:
Try to run both the JOBs at the same time.
I'd not run them concurrently - there may be performance issues as well as allocation issues. If you run both tests, i'd suggest you run them serially and alternate the order of execution making multiple tests.
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Anuj Dhawan

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PostPosted: Thu Jun 05, 2008 9:59 pm
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Hi Dick,
dick scherrer wrote:
Quote:
Try to run both the JOBs at the same time.
I'd not run them concurrently - there may be performance issues as well as allocation issues. If you run both tests, i'd suggest you run them serially and alternate the order of execution making multiple tests.
Recently, I ran one job two times with the same inputs/setups, but at different times CPU usage were different, so I suggested the above.

For the TS concern, there might be a problem in using the same DSN in both the "concurrent" JOBs (one JOB might go on 'hold') but that DSN name can be changed, while having the same contents, if some one is concerned about performance issues.
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dick scherrer

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PostPosted: Fri Jun 06, 2008 2:04 am
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Hello,

Quote:
but at different times CPU usage were different
This should not have an impact on the amount of cpu the "test" job uses. It may impact wall time, but not cpu time needed.

When trying to compare 2 processes like these, it is a good idea to run them in the same job, multiple times, alternating the sequence. This will give a decent approximation of a benchmark without needing to set up some formal benchmark environment.

The 2 items to look at for a simple comparison is cpu time and i/o (excps).
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Aniyaa

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PostPosted: Mon Jun 09, 2008 2:40 pm
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Thanks a lot for all your suggestions. I have decided to go for the program and not the JCL.. not becos of any performance issues . But becos I can handle exceptions better thru a cobol program.

Thanks
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dick scherrer

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PostPosted: Mon Jun 09, 2008 8:14 pm
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Thank you for the update icon_smile.gif

Personally, i believe specific exception handling and implementing business rules is better done in code.

d
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Anuj Dhawan

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PostPosted: Tue Jun 10, 2008 2:49 pm
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Aniyaa wrote:
I can handle exceptions better thru a cobol program.
As a Mianframe progammer I love COBOL code than JCLs to do "magics"..
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