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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
Hi,
I have two files.
File#1 - (Previous day file.) RECFM=FB, LRECL=5448, Key is from Position 2 to 11.
Code:
1300001200032000320003 20004 A200031N4DL01D3YC129344
1300001200092000920009 20009 A20009JN8AR07Y4YW411999
1300001200642006420064 20064 A20064JN8AR07Y4YW406432
1300001200762007620076 20076 A200761N4DL01D0YC133299
1300001200812008120081 20081 A200811N4DL01DXYC135142
1300001200872008720087 20087 A20087JN1CA31A1YT210137
1300001202422024220242 20242 A202425N1ED28Y0YC538767
1300001203142031420314 20314 A203141N4DL01D3YC137654
1300001203402034020340 20340 A203401N4DL01D3YC115623
File#2 - (Current day file.) RECFM=FB, LRECL=5448 Key is from Position 2 to 11.
Code:
1300001200032000320003 20003 A200031N4DL01D3YC129344
1300001200092000920009 20010 A20009JN8AR07Y4YW411999
1300001200642006420064 20064 A20064JN8AR07Y4YW406432
1300001200762007620076 20076 A200761N4DL01D0YC133299
1300001200812008120081 20081 A200811N4DL01DXYC135142
1300001200872008720087 20087 A20087JN1CA31A1YT210137
1300001202422024220242 20242 A202425N1ED28Y0YC538767
1300001203142031420314 20314 A203141N4DL01D3YC137654
1300001203142031499999 20314 A203141N4DL01D3YC137654
In this case, the output i should get is below.
Code:
1300001200032000320003 20003 A200031N4DL01D3YC129344
1300001200092000920009 20010 A20009JN8AR07Y4YW411999
1300001203142031499999 20314 A203141N4DL01D3YC137654
If key from File#1 is not found in File#2, then file#3 should not include the record from file#1.basically the record was deleted from the current day file.so i need to ignore the deleted record.
If Key from file#1 is found in File#2, then compare by record for that particular key in file1 and file2. if the record are matching in both file#1 and file#2, then ignore this record. otherwise, write the record form file#2 to file#3.
If key from File#2 is NOT found in File#2, then include the record from file#2 to file#3.
In simple words, my requirements are below,
If any new record addition, include the record into file#3.
If any record deleted, ignore the deletion. No need to include into file#3.
If any record updated, include the record file#2 to file#3.
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Skolusu Senior Member Joined: 07 Dec 2007Posts: 2205 Location: San Jose
Javalal,
With z/OS DFSORT V1R5 PTF UK51706 or z/OS DFSORT V1R10 PTF UK51707 (Nov, 2009), DFSORT now supports the JOINKEYS function which will give you the desired results as shown below
Code:
//STEP0100 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//PREVDAY DD DSN=your Previous day file,DISP=SHR
//CURRDAY DD DSN=your Current day file,DISP=SHR
//SORTOUT DD SYSOUT=*
//SYSIN DD *
JOINKEYS F1=PREVDAY,FIELDS=(2,11,A)
JOINKEYS F2=CURRDAY,FIELDS=(2,11,A)
JOIN UNPAIRED,F2
REFORMAT FIELDS=(?,F2:1,5448,F1:1,5448)
SORT FIELDS=COPY
OUTREC IFTHEN=(WHEN=(0001,1,CH,EQ,C'B',AND,
(0002,256,CH,EQ,05450,256,CH,AND,
0258,256,CH,EQ,05706,256,CH,AND,
0514,256,CH,EQ,05962,256,CH,AND,
0770,256,CH,EQ,06218,256,CH,AND,
1026,256,CH,EQ,06474,256,CH,AND,
1282,256,CH,EQ,06730,256,CH,AND,
1538,256,CH,EQ,06986,256,CH,AND,
1794,256,CH,EQ,07242,256,CH,AND,
2050,256,CH,EQ,07498,256,CH,AND,
2306,256,CH,EQ,07754,256,CH,AND,
2562,256,CH,EQ,08010,256,CH,AND,
2818,256,CH,EQ,08266,256,CH,AND,
3074,256,CH,EQ,08522,256,CH,AND,
3330,256,CH,EQ,08778,256,CH,AND,
3586,256,CH,EQ,09034,256,CH,AND,
3842,256,CH,EQ,09290,256,CH,AND,
4098,256,CH,EQ,09546,256,CH,AND,
4354,256,CH,EQ,09802,256,CH,AND,
4610,256,CH,EQ,10058,256,CH,AND,
4866,256,CH,EQ,10314,256,CH,AND,
5122,256,CH,EQ,10570,256,CH,AND,
5378,072,CH,EQ,10826,072,CH)),
OVERLAY=(1:C'D'))
OUTFIL OMIT=(1,1,CH,EQ,C'D'),BUILD=(2,5448)
//*
For complete details on JOINKEYS and the other new functions available with the Nov, 2009 DFSORT PTF, see:
www.ibm.com/support/docview.wss?rs=114&uid=isg3T7000174
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
Hi,
the above solution did not work for me. i think i dont have the latest DFSORT installed in my mainframe.
getting the below error message. can u suggest me another solution for me?
Code:
ICE143I 0 BLOCKSET COPY TECHNIQUE SELECTED
ICE250I 0 VISIT http://www.ibm.com/storage/dfsort FOR DFSORT PAPERS, EXAMPLES AN
ICE000I 1 - CONTROL STATEMENTS FOR 5694-A01, Z/OS DFSORT V1R5 - 22:43 ON THU MAY
JOINKEYS F1=PREVDAY,FIELDS=(2,11,A)
$
ICE005A 0 STATEMENT DEFINER ERROR
JOINKEYS F2=CURRDAY,FIELDS=(2,11,A)
$
ICE005A 0 STATEMENT DEFINER ERROR
JOIN UNPAIRED,F2
$
ICE005A 0 STATEMENT DEFINER ERROR
REFORMAT FIELDS=(?,F2:1,5448,F1:1,5448)
$
ICE005A 0 STATEMENT DEFINER ERROR
SORT FIELDS=COPY
OUTREC IFTHEN=(WHEN=(0001,1,CH,EQ,C'B',AND,
(0002,256,CH,EQ,05450,256,CH,AND,
0258,256,CH,EQ,05706,256,CH,AND,
0514,256,CH,EQ,05962,256,CH,AND,
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Skolusu Senior Member Joined: 07 Dec 2007Posts: 2205 Location: San Jose
javalal,
Do you have duplicates in any of the files on the key?
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
Hi,
No duplicates will there in the file. the key is unique.
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Skolusu Senior Member Joined: 07 Dec 2007Posts: 2205 Location: San Jose
Javalal,
Use the following DFSORT JCL which will give you the desired results. I assumed the key length to be 11 bytes starting from position 2 which would match the results which you provided.
Code:
//STEP0100 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//SORTIN DD *
//SORTOUT DD DSN=&&HDR,DISP=(,PASS),SPACE=(TRK,(1,0),RLSE)
//SYSIN DD *
SORT FIELDS=COPY
INREC OVERLAY=(5448:X)
OUTFIL REMOVECC,NODETAIL,HEADER1=('$$$')
//*
//STEP0200 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//SORTIN DD DSN=&&HDR,DISP=SHR,VOL=REF=*.STEP0100.SORTOUT
// DD DSN=Your Previous Day file,DISP=SHR
// DD DSN=&&HDR,DISP=SHR,VOL=REF=*.STEP0100.SORTOUT
// DD DSN=Your Current Day file,DISP=SHR
//SORTOUT DD SYSOUT=*
//SYSIN DD *
INREC IFTHEN=(WHEN=GROUP,BEGIN=(1,3,CH,EQ,C'$$$'),PUSH=(10897:ID=1))
SORT FIELDS=(2,11,CH,A),EQUALS
OUTREC IFTHEN=(WHEN=INIT,OVERLAY=(10899:SEQNUM,8,ZD,RESTART=(2,11))),
IFTHEN=(WHEN=GROUP,BEGIN=(10899,8,ZD,EQ,1),
PUSH=(5449:1,5448,10898:10897,1)),
IFTHEN=(WHEN=(10897,2,ZD,EQ,21,AND,
(0001,256,CH,EQ,05449,256,CH,AND,
0257,256,CH,EQ,05705,256,CH,AND,
0513,256,CH,EQ,05961,256,CH,AND,
0769,256,CH,EQ,06217,256,CH,AND,
1025,256,CH,EQ,06473,256,CH,AND,
1281,256,CH,EQ,06729,256,CH,AND,
1537,256,CH,EQ,06985,256,CH,AND,
1793,256,CH,EQ,07241,256,CH,AND,
2049,256,CH,EQ,07497,256,CH,AND,
2305,256,CH,EQ,07753,256,CH,AND,
2561,256,CH,EQ,08009,256,CH,AND,
2817,256,CH,EQ,08265,256,CH,AND,
3073,256,CH,EQ,08521,256,CH,AND,
3329,256,CH,EQ,08777,256,CH,AND,
3585,256,CH,EQ,09033,256,CH,AND,
3841,256,CH,EQ,09289,256,CH,AND,
4097,256,CH,EQ,09545,256,CH,AND,
4353,256,CH,EQ,09801,256,CH,AND,
4609,256,CH,EQ,10057,256,CH,AND,
4865,256,CH,EQ,10313,256,CH,AND,
5121,256,CH,EQ,10569,256,CH,AND,
5377,072,CH,EQ,10825,072,CH)),
OVERLAY=(10897:C'DD'))
OUTFIL OMIT=(10897,2,SS,EQ,C'11,DD'),BUILD=(1,5448)
//*
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
hi,
i am getting the following error.
Code:
ICE000I 1 - CONTROL STATEMENTS FOR 5694-A01, Z/OS DFSORT V1R5 - 00:24 ON SAT MAY
INREC IFTHEN=(WHEN=GROUP,BEGIN=(1,3,CH,EQ,C'$$$'),
$
ICE005A 0 STATEMENT DEFINER ERROR
PUSH=(10897:ID=1))
$
ICE005A 0 STATEMENT DEFINER ERROR
SORT FIELDS=(2,11,CH,A),EQUALS
$
ICE005A 0 STATEMENT DEFINER ERROR
OUTREC IFTHEN=(WHEN=INIT,OVERLAY=(10899:SEQNUM,8,ZD,
$
ICE005A 0 STATEMENT DEFINER ERROR
RESTART=(2,11))),
IFTHEN=(WHEN=GROUP,BEGIN=(10899,8,ZD,EQ,1),
PUSH=(5449:1,5448,10898:10897,1)),
$
ICE005A 0 STATEMENT DEFINER ERROR
IFTHEN=(WHEN=(10897,2,ZD,EQ,21,AND,
(0001,256,CH,EQ,05449,256,CH,AND,
$
ICE007A 1 SYNTAX ERROR
0257,256,CH,EQ,05705,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
0513,256,CH,EQ,05961,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
0769,256,CH,EQ,06217,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
1025,256,CH,EQ,06473,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
1281,256,CH,EQ,06729,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
1537,256,CH,EQ,06985,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
1793,256,CH,EQ,07241,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
2049,256,CH,EQ,07497,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
2305,256,CH,EQ,07753,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
2561,256,CH,EQ,08009,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
2817,256,CH,EQ,08265,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
3073,256,CH,EQ,08521,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
3329,256,CH,EQ,08777,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
3585,256,CH,EQ,09033,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
3841,256,CH,EQ,09289,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
4097,256,CH,EQ,09545,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
4353,256,CH,EQ,09801,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
4609,256,CH,EQ,10057,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
4865,256,CH,EQ,10313,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
5121,256,CH,EQ,10569,256,CH,AND,
$
ICE007A 0 SYNTAX ERROR
5377,072,CH,EQ,10825,072,CH)),
$
ICE007A 0 SYNTAX ERROR
OVERLAY=(10897:C'DD'))
$
ICE005A 0 STATEMENT DEFINER ERROR
OUTFIL OMIT=(10897,2,SS,EQ,C'11,DD'),BUILD=(1,5448)
ICE010A 0 NO SORT OR MERGE CONTROL STATEMENT
ICE751I 0 C5-K90007 C6-K90007 E7-K11698
ICE052I 3 END OF DFSORT
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Escapa Senior Member Joined: 16 Feb 2007Posts: 1399 Location: IL, USA
Javalal, It looks you don't have PTF installed required for using WHEN=GROUP(PTF UK90013)...
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
Hi,
can you suggest me someother method for comparing two DSNs with same LRECL?
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dick scherrer Moderator Emeritus Joined: 23 Nov 2006Posts: 19244 Location: Inside the Matrix
Hello,
Try SUPERC. . .
There are many topics in our forum. Use the "search" above.
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Escapa Senior Member Joined: 16 Feb 2007Posts: 1399 Location: IL, USA
One thing to notify... in current day file key 30000120314 repeated.
Is it typo or intentional?
It would be very simple task by selcopy. Check if you have installed at your shop.
If you are not aware of if it is there,you might want to check if you have library SYS*.SELCOPY.LOADLIB
Let us know if it is available...
It would also be possible using splice flavor of solution apart from above but it would be little complicated than above two provided by Kolusu.
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
yes, the file will have duplicate key.
i have checked in the lib SYS*.SELCOPY.LOADLIB . it si not available in my system.
i have similar requirement for one of the smaller dataset which is LRECL=600 with few records. the below code works for my requirement. But for the larger files, it does not work. i am getting SPACE abend for dataset &&T1. i can not allocated UNIT=TAPE for this in ICETOOL. my files are TAPE datasets and almost 2500 Cylinders. since i compare two files, i need to allocated 5000 cylinders which i should not do...
Code:
//SORTSTEP EXEC PGM=ICETOOL
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//IN1 DD DSN=ABCD.SALT(-1),DISP=SHR
//IN2 DD DSN=ABCD.SALT(+0),DISP=SHR
//T1 DD DSN=&&T1,UNIT=PRD,DISP=(MOD,PASS),
// SPACE=(CYL,(200,200),RLSE)
//OUT DD DSN=NCFT.SALT(+1),
// DISP=(NEW,CATLG,DELETE),
// UNIT=PRD,
// SPACE=(CYL,(100,100),RLSE),
// DCB=(MODDSCB,LRECL=600,RECFM=FB)
//TOOLIN DD *
COPY FROM(IN1) TO(T1) USING(CTL1)
COPY FROM(IN2) TO(T1) USING(CTL2)
SELECT FROM(T1) TO(OUT) ON(2,54,CH) ON(55,500,CH) -
NODUPS USING(CTL3)
/*
//CTL1CNTL DD *
INREC OVERLAY=(601:C'1')
/*
//CTL2CNTL DD *
INREC OVERLAY=(601:C'2')
/*
//CTL3CNTL DD *
OUTFIL FNAMES=OUT,INCLUDE=(601,1,CH,EQ,C'2'),
BUILD=(1,600)
/*
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dick scherrer Moderator Emeritus Joined: 23 Nov 2006Posts: 19244 Location: Inside the Matrix
Hello,
Quote:
No duplicates will there in the file. the key is unique.
Quote:
yes, the file will have duplicate key.
Which should be believed. . ?
There is already tested code to do what you want in the "Sticky" at the top of the COBOL part of the forum. Both input files must be in key sequence. It should take less than an hour to modify this for your process.
If you do not want to use code, then you need to get permission to create a larger t1 file.
Quote:
i can not allocated UNIT=TAPE for this in ICETOOL.
Why not?
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
Hi,
Duplicates will there in the file.
Currently i am using the NATURAL program to compare the files. which is running so long time to compare the files. almoste more that 30 mins.
that is the reason, i wanted to change it to DFSORT/ICETOOL.
I dont have the latest ICETOOL version in my mainframe. which is not allowing to specify TAPE for the T1 dataset.
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dick scherrer Moderator Emeritus Joined: 23 Nov 2006Posts: 19244 Location: Inside the Matrix
Hello,
I don't have dfsort/icetool available so i can't run a test, but what happens if you change the unit=, remove the space=, and submit the job?
Does ICETOOL prevent this or is this something particular to your system? What happens if you specify tape/cart for the t1 dataset?
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
Hi,
i have ran the job with UNIT=TAPE for T1 dataset and removed the space parameter.
i got the below error message.
Code:
ICE600I 0 DFSORT ICETOOL UTILITY RUN STARTED
ICE650I 0 VISIT http://www.ibm.com/storage/dfsort FOR ICETOOL PAPERS, EXAMPLES A
ICE632I 0 SOURCE FOR ICETOOL STATEMENTS: TOOLIN
ICE630I 0 MODE IN EFFECT: STOP
COPY FROM(IN1) TO(T1) USING(CTL1)
the below message from JES2 Job log.
Code:
10.38.35 JOB07241 ---- SUNDAY, 09 MAY 2010 ----
10.38.35 JOB07241 IRR010I USERID ANTONYJ IS ASSIGNED TO THIS JOB.
10.38.35 JOB07241 ICH70001I ANTONYJ LAST ACCESS AT 10:34:58 ON SUNDAY, MAY 9,
10.38.35 JOB07241 $HASP373 ANTONYJA STARTED - INIT 8 - CLASS F - SYS NCI1
10.38.35 JOB07241 IEF403I ANTONYJA - STARTED - TIME=10.38.35
10.38.35 JOB07241 IEF233A M 2328,316378,,ANTONYJA,SORTSTEP,NCFP.COMBINE.COMPAR
10.38.35 JOB07241 IEF233A M 2108,313597,,ANTONYJA,SORTSTEP,NCFP.COMBINE.COMPAR
10.38.36 JOB07241 ICHRIX02 - NCFP.COMBINE.COMPARE.G0748V00
10.38.36 JOB07241 SVM4000I ANTONYJA, SORTSTEP, T1, ATTEMPTING SPACVOLA FOR SYS
10.38.36 JOB07241 SVM4001I RECOVERY ATTEMPT FAILED TO PASS FLST/RLST CRITERIA
10.38.36 JOB07241 IEC030I B37-04,IFG0554A,ANTONYJA,SORTSTEP,T1,VIO , ,SYS
10.38.36 JOB07241 IEA995I SYMPTOM DUMP OUTPUT 797
797 SYSTEM COMPLETION CODE=B37 REASON CODE=00000004
797 TIME=10.38.36 SEQ=34506 CPU=0000 ASID=0095
797 PSW AT TIME OF ERROR 075C1000 80E4ACDE ILC 2 INTC 0D
797 NO ACTIVE MODULE FOUND
797 NAME=UNKNOWN
797 DATA AT PSW 00E4ACD8 - 41003846 0A0DB20A 00509808
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dick scherrer Moderator Emeritus Joined: 23 Nov 2006Posts: 19244 Location: Inside the Matrix
Hello,
The t1 dataset was not allocated to tape/cart - it was assigned to vio.
Suggest you talk with your storage management people for guidance/resolution.
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Skolusu Senior Member Joined: 07 Dec 2007Posts: 2205 Location: San Jose
Javalal,
Here is the last attempt of mine which would give you the desired results.
Code:
//STEP0100 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//SORTIN DD *
//SORTOUT DD DSN=&&HDR,DISP=(,PASS),SPACE=(TRK,(1,0),RLSE)
//SYSIN DD *
SORT FIELDS=COPY
INREC OVERLAY=(5448:X)
OUTFIL REMOVECC,NODETAIL,HEADER1=('$$$')
//*
//STEP0200 EXEC PGM=ICETOOL
//TOOLMSG DD SYSOUT=*
//DFSMSG DD SYSOUT=*
//IN DD DSN=&&HDR,DISP=SHR,VOL=REF=*.STEP0100.SORTOUT
// DD DSN=Your Previous Day file,DISP=SHR
// DD DSN=&&HDR,DISP=SHR,VOL=REF=*.STEP0100.SORTOUT
// DD DSN=Your Current Day file,DISP=SHR
//OUT DD SYSOUT=*
//TOOLIN DD *
SPLICE FROM(IN) TO(OUT) ON(2,11,CH) WITHALL KEEPNODUPS -
WITH(1,5448) WITH(10898,1) USING(CTL1)
//CTL1CNTL DD *
INREC IFTHEN=(WHEN=INIT,OVERLAY=(10897:C'22',SEQNUM,8,ZD)),
IFTHEN=(WHEN=(1,3,CH,EQ,C'$$$'),OVERLAY=(10899:SEQNUM,8,ZD)),
IFTHEN=(WHEN=(1,3,CH,NE,C'$$$'),
OVERLAY=(10907:SEQNUM,8,ZD,
10899:10899,8,ZD,SUB,10907,8,ZD,M11,LENGTH=8),HIT=NEXT),
IFTHEN=(WHEN=(10899,8,ZD,EQ,1),OVERLAY=(5449:1,5448,C'11'))
OUTFIL FNAMES=OUT,BUILD=(1,5448),
OMIT=(10897,2,ZD,EQ,11,OR,1,3,CH,EQ,C'$$$',OR,
(10897,2,ZD,EQ,12,AND,
00001,256,CH,EQ,05449,256,CH,AND,
00257,256,CH,EQ,05705,256,CH,AND,
00513,256,CH,EQ,05961,256,CH,AND,
00769,256,CH,EQ,06217,256,CH,AND,
01025,256,CH,EQ,06473,256,CH,AND,
01281,256,CH,EQ,06729,256,CH,AND,
01537,256,CH,EQ,06985,256,CH,AND,
01793,256,CH,EQ,07241,256,CH,AND,
02049,256,CH,EQ,07497,256,CH,AND,
02305,256,CH,EQ,07753,256,CH,AND,
02561,256,CH,EQ,08009,256,CH,AND,
02817,256,CH,EQ,08265,256,CH,AND,
03073,256,CH,EQ,08521,256,CH,AND,
03329,256,CH,EQ,08777,256,CH,AND,
03585,256,CH,EQ,09033,256,CH,AND,
03841,256,CH,EQ,09289,256,CH,AND,
04097,256,CH,EQ,09545,256,CH,AND,
04353,256,CH,EQ,09801,256,CH,AND,
04609,256,CH,EQ,10057,256,CH,AND,
04865,256,CH,EQ,10313,256,CH,AND,
05121,256,CH,EQ,10569,256,CH,AND,
05377,072,CH,EQ,10825,072,CH))
//*
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javalal New User Joined: 03 Oct 2007Posts: 12 Location: Chennai,India
Hi Kolusu,
The above JCL worked as expected. thanks a lot. also, this JCL executed very fast less than 6 mins....earlier i had a NATURAL program, it compares two datasets which runs almost 25mins.
I admire about the logic you put above.
can you please explain me the logic, so that i can apply the same to some of the other files.
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Escapa Senior Member Joined: 16 Feb 2007Posts: 1399 Location: IL, USA
Rather than Kolusu explaining logic for current sortcard he has posted,
If you go though documentation(DFSORT getting started atleast) It will take you far in DFSORT knowledge.
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