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Split file, SORT then append records.



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Split file, SORT then append records.

Postby Esmayeelhusen » Fri Aug 04, 2023 6:37 pm

Hi All,
I am working on a requirement to sort the files in to 2 different sort sequences and append the records.
First sort should be done as, SORT FIELDS=(1,1,BI,A,27,6,BI,A,11,1,BI,A)
Then i have to separate the '3' in first byte and sort like as, SORT FIELDS=(80,12,BI,A,11,1,BI,D)
Then I have to append these records at the end of the first file before trailer record.
Files is PS,FB, LRECL=227

Please suggest if its possible in a single step. Your help will be much appreciated.


Select all
VIEW       SHOG.W3SODS.CHS.ODSCHSOE                                                                            Columns 00001 00124
Command ===>                                                                                                      Scroll ===> CSR
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000002 255356090515102700007500000000063290000000000000230804000000B0000000000000000000CH21 29Apr2022  SGB CHS SCN014 OFI
000003 210021180915102700007400000000002530000000000000230804000000B0000000000000000000Ofi dd
000004 210021180913207700008400000000002530000000000000230804000000B0000000000000000000INWARD PAYMENT Muhammed CBA ACC
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000011 210015030513207700007600000000022930000000000000230804000000B0000000000000000000WBC API
000012 210015030563202700008600000000022930000000000000230804000000B0000000000000000000  PARTNERSHIP SECURITIES PTY LIMITED
000013 210010562715102700007800000007331000000000000000230804000000B0000000000000000000 FTH ODS CHS SCN001 Tania England
000014 210034530515102700007800000000079310000000000000230804000000B0000000000000000000Nazia Shaik OFI
000015 210034530513507700008800000000079310000000000000230804000000B0000000000000000000OFI 2.0
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000023 255356090513207700008500000000063290000000000000230804000000B0000000000000000000SGB CHS SCN014 OFI
000024 210021180915102700007400000000019160000000000000230804000000B0000000000000000000CH21 29Apr2022  SGB CHS SCN014 OFI
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000033 9000000192
****** ****************************************************** Bottom of Data ******************************************************
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Re: Split file, SORT then append records.

Postby sergeyken » Fri Aug 04, 2023 6:57 pm

More than one SORT is not possible in a single SORT step, but you can do it sequentially via two SORT statements within a single ICETOOL/SYNCTOOL step.
Select all
//TWINSORT EXEC PGM=ICETOOL
// . . . . .
//TOOLIN   DD  *
 SORT FROM(SORTIN)    TO(WORKFILE)  USING(SRT1)
 SORT FROM(WORKFILE)  TO(SORTOUT)   USING(SRT2)
//*
//WORKFILE DD  SPACE=(CYL,(10,10))
//*
//SRT1CNTL DD  *
 SORT FIELDS=...
 OUTFIL FNAMES=SORTOUT,INCLUDE=(first part)
 OUTFIL FNAMES=WORKFILE,SAVE    all unused yet records
//*
//SRT2CNTL DD *
 SORT FIELDS=...
 OUTFIL FNAMES=SORTOUT    - add resorted part to SORTOUT with DISP=MOD (!!)
//*
Javas and Pythons come and go, but JCL and SORT stay forever.
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Re: Split file, SORT then append records.

Postby sergeyken » Fri Aug 04, 2023 7:18 pm

1. If //SORTOUT DD SYSOUT=* then DISP=MOD is used by default.

2. If //SORTOUT DD DISP=(NEW,...) then it is equivalent to DISP=MOD

3. Using //SORTOUT DD DISP=MOD explicitly is doubtful: for existing dataset the data from the first SORT will be appended to its old, unpredictable content.

4. Using //SORTOUT DD DISP=OLD/SHR is wrong, because the second SORT will override the result of the first one.
Javas and Pythons come and go, but JCL and SORT stay forever.
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Re: Split file, SORT then append records.

Postby Esmayeelhusen » Sun Aug 06, 2023 7:23 pm

Hi Sergeyken,
Thanks for your reply.
As per your suggestions I have achieved the expected outcome. Appreciate your help.


Select all
//PS016     EXEC PGM=ICETOOL,COND=(4,LT)
//SORTIN    DD DSN=X.YYYYY.ZZZ.INFILE(0),DISP=SHR
//*            DCB=BUFNO=5
//SORTOUT   DD DSN=X.YYYYY.ZZZ.INFILE.SORTED(+1),
//             UNIT=DISK,
//             DCB=(&MDSCB..XXXX.MODEL.DSCB,
//             BLKSIZE=0,LRECL=227,RECFM=FB,BUFNO=5,DSORG=PS),
//             SPACE=(CYL,(02,2),RLSE),DISP=(NEW,CATLG,KEEP)
//*
//TOOLIN    DD  *
    SORT FROM(SORTIN)    TO(WRKFILE1)  USING(SRT1)
    SORT FROM(WRKFILE2)  TO(WRKFILE1)  USING(SRT2)
    SORT FROM(WRKFILE1)  TO(SORTOUT)   USING(SRT3)
//*
//WRKFILE1  DD  DISP=MOD,SPACE=(CYL,(10,10))
//WRKFILE2  DD  SPACE=(CYL,(10,10))
//TOOLMSG   DD SYSOUT=*
//DFSMSG    DD SYSOUT=*
//*
//SRT1CNTL  DD  *
 SORT FIELDS=(001,1,BI,A,
              027,6,BI,A,
              131,6,BI,A,
              011,1,BI,A),FILSZ=E1500 * SORT RECORDS AS PER CARD
    OUTFIL FNAMES=WRKFILE1,           * COPY SORTED EXCEPT TYPE 3 REC,
           INCLUDE=(1,1,CH,NE,C'3')   * INCLUDING H & T TO WRKFILE1
    OUTFIL FNAMES=WRKFILE2,SAVE       * COPY SORTED ONLY TYPE 3 RECORDS
//*                                   * TO WRKFILE2
//SRT2CNTL DD *
    SORT FIELDS=(163,12,BI,A,         * SORT WRKFILE2 AS PER CARD
                 011,01,BI,D)         * APPEND WRKFILE2 REC TO WRKFILE1
    OUTFIL FNAMES=WRKFILE1,SAVE
//*
//SRT3CNTL DD *                       * NOW TYPE 3 REC ARE AFTER TRILER
    SORT FIELDS=(1,1,BI,A)            * SORT AS PER REC TYPE TO SORTOUT
    OUTFIL FNAMES=SORTOUT
//*
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Re: Split file, SORT then append records.

Postby sergeyken » Mon Aug 07, 2023 1:09 am

There is no need to run it in three stages. Two stages (and only one work file) is enough to get the same result. I suggested you the solution, but you prefer to ignore it.
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Re: Split file, SORT then append records.

Postby Esmayeelhusen » Mon Aug 07, 2023 7:29 am

Hi Sergeyken,
As per your solution record type 3 are appended at the end, which is after trailer record (Record type 9)
To bring the trailer at the end I have introduced third stage.
Please suggest, if this can be done without stage 3.
Thanks
Husen
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Re: Split file, SORT then append records.

Postby sergeyken » Mon Aug 07, 2023 5:35 pm

Select all
//TWINSORT EXEC PGM=ICETOOL                                                    
//*                                                                            
//SSMSG    DD  SYSOUT=*                                                        
//TOOLMSG  DD  SYSOUT=*                                                        
//SORTIN   DD  *                                                                
1         D               ZZZZZZ                           YYYYYYYYYYYY        
2         D               ZZZZZZ                           YYYYYYYYYYYY        
3         D               ZZZZZZ                           YYYYYYYYYYYY        
1         C               KKKKKK                           LLLLLLLLLLLL        
2         C               KKKKKK                           LLLLLLLLLLLL        
3         C               KKKKKK                           LLLLLLLLLLLL        
1         A               BBBBBB                           CCCCCCCCCCCC        
2         A               BBBBBB                           CCCCCCCCCCCC        
3         A               BBBBBB                           CCCCCCCCCCCC        
1         B               BBBBBB                           MMMMMMMMMMMM        
2         B               BBBBBB                           MMMMMMMMMMMM        
3         B               BBBBBB                           MMMMMMMMMMMM        
//*-+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8
//TOOLIN   DD  *                                                                
 SORT FROM(SORTIN)    TO(WORKFILE)  USING(SRT1)                                
 SORT FROM(WORKFILE)  TO(SORTOUT)   USING(SRT2)                                
//*                                                                            
//WORKFILE DD  SPACE=(CYL,(10,10))                                              
//*                                                                            
//SORTOUT  DD  SYSOUT=*                                                        
//*                                                        
//SRT1CNTL DD  *      
* Makes no sense to sort character data as 'BI"!!!                                    
 SORT FIELDS=(1,1,CH,A,                                    
             27,6,CH,A,                                    
             11,1,CH,A)                                    
 OUTFIL FNAMES=SORTOUT,INCLUDE=(1,1,CH,NE,C'3')            
 OUTFIL FNAMES=WORKFILE,SAVE    all unused yet records    
//*                                                        
//SRT2CNTL DD *
* Here position 1 is always equal to '3' - NO NEED TO RESORT AGAIN!                                          
 SORT FIELDS=(60,12,CH,A,                                  
              11,1,CH,D)                                  
 OUTFIL FNAMES=SORTOUT    add resorted part to SORTOUT    
//*                                                        

Select all
********************************* TOP OF DATA ******************************
1         A               BBBBBB                           CCCCCCCCCCCC    
1         B               BBBBBB                           MMMMMMMMMMMM    
1         C               KKKKKK                           LLLLLLLLLLLL    
1         D               ZZZZZZ                           YYYYYYYYYYYY    
2         A               BBBBBB                           CCCCCCCCCCCC    
2         B               BBBBBB                           MMMMMMMMMMMM    
2         C               KKKKKK                           LLLLLLLLLLLL    
2         D               ZZZZZZ                           YYYYYYYYYYYY    
3         A               BBBBBB                           CCCCCCCCCCCC    
3         C               KKKKKK                           LLLLLLLLLLLL    
3         B               BBBBBB                           MMMMMMMMMMMM    
3         D               ZZZZZZ                           YYYYYYYYYYYY    
******************************** BOTTOM OF DATA ****************************
Javas and Pythons come and go, but JCL and SORT stay forever.
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Re: Split file, SORT then append records.

Postby Esmayeelhusen » Tue Aug 08, 2023 6:51 am

Hi Sergeyken,
Thanks for your reply.

Your input data looks good, however i have record types '6', '8' and '9' as well in the files.
I have modified the test data and executed your job, the outcome is as below.
The record type '3' are at the bottom of the file.
I believe we need stage 3 to sort on the first byte to bring everything in sequence.


Select all
********************************* TOP OF DATA ***************************
1         A               BBBBBB                           CCCCCCCCCCCC
1         B               BBBBBB                           MMMMMMMMMMMM
1         C               KKKKKK                           LLLLLLLLLLLL
1         D               ZZZZZZ                           YYYYYYYYYYYY
2         A               BBBBBB                           CCCCCCCCCCCC
2         B               BBBBBB                           MMMMMMMMMMMM
2         C               KKKKKK                           LLLLLLLLLLLL
2         D               ZZZZZZ                           YYYYYYYYYYYY
8         B               BBBBBB                           MMMMMMMMMMMM
8         B               BBBBBB                           MMMMMMMMMMMM
9         B               BBBBBB                           MMMMMMMMMMMM
9         B               BBBBBB                           MMMMMMMMMMMM
9         B               BBBBBB                           MMMMMMMMMMMM
3         A               BBBBBB                           CCCCCCCCCCCC
3         C               KKKKKK                           LLLLLLLLLLLL
3         B               BBBBBB                           MMMMMMMMMMMM
3         D               ZZZZZZ                           YYYYYYYYYYYY
******************************** BOTTOM OF DATA *************************
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Re: Split file, SORT then append records.

Postby sergeyken » Tue Aug 08, 2023 5:07 pm

First: please list ALL your requirements IN FULL
Next: we can continue the discussion.
Javas and Pythons come and go, but JCL and SORT stay forever.
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Re: Split file, SORT then append records.

Postby sergeyken » Tue Aug 08, 2023 10:47 pm

In any case: there is no need to re-sort again the part of data already sorted once. Especially for mega-million datasets

Select all
//TOOLIN   DD  *                                                
 SORT FROM(SORTIN)    TO(SORTOUT,PART3,PARTGT3)  USING(SRT0)    
 SORT FROM(PART3)     TO(SORTOUT)                USING(SRT3)    
 COPY FROM(PARTGT3)   TO(SORTOUT)                              
//*                                                            
//PART3    DD  SPACE=(CYL,(10,10))                              
//PARTGT3  DD  SPACE=(CYL,(10,10))                              
//*                                                            
//SORTOUT  DD  SYSOUT=*                                        
//*                                                            
//SRT0CNTL DD  *                                                
* Sort whole input data; split into 3 parts                    
 SORT FIELDS=(1,1,CH,A,                                        
             27,6,CH,A,                                        
             11,1,CH,A)                                        
 OUTFIL FNAMES=SORTOUT,INCLUDE=(1,1,CH,LT,C'3')                
 OUTFIL FNAMES=PART3,INCLUDE=(1,1,CH,EQ,C'3')                  
 OUTFIL FNAMES=PARTGT3,SAVE                                    
//*                                                            
//SRT3CNTL DD *                                                
* Re-sort only group '3' data; append to SORTOUT                
 SORT FIELDS=(60,12,CH,A,                                      
              11,1,CH,D)                                                 
//*                                                            
Javas and Pythons come and go, but JCL and SORT stay forever.
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