20 DFSORT Tricks For Zos Users - Interview Questions

1. www.srinimf.com
1

2. I am giving here only sysin code so that you can get
quick refresh:
Y4T = YYYYMMDD
//SORTOUT DD SYSOUT=*
//SYSIN DD *
OPTION COPY
INREC BUILD=(1,8,Y4T,TOJUL=Y4T)
/*
We converted to Julian date YYYYDDD
2

3. OPTION COPY
OUTREC OVERLAY=(30:16,8,Y4T,TOGREG=Y2T)
OUTFIL INCLUDE=(30,1,CH,EQ,C'*'),BUILD=(1,25)
Wherever ‘*’ is there in date starting position. Those records
we can get in the output.
3

4. //SYSIN DD *
OPTION COPY
INREC OVERLAY=(20:1,8,Y4T,DATEDIFF,10,8,Y4T)
/*
 Output contains différence between dates.
4

5. // SET INPVAR1='BBDY1'
// SET INPVAR2='BBJOB'
the following DFSORT symbols would be built in
SYMNAMES:
the INCLUDE statement would be transformed to:
INCLUDE
COND=(8,5,CH,EQ,C'BBDY1',OR,8,5,CH,EQ,C'BBJOB'
)
5

6. //SYSIN DD *
OPTION COPY
OUTFIL FNAMES=OUT1,INCLUDE=(1,4,CH,EQ,C'1010'),ACCEPT=100
OUTFIL FNAMES=OUT2,INCLUDE=(1,4,CH,EQ,C'1020'),ACCEPT=100
OUTFIL FNAMES=OUT3,INCLUDE=(1,4,CH,EQ,C'1030'),ACCEPT=100
OUTFIL FNAMES=OUT4,INCLUDE=(1,4,CH,EQ,C'1040'),ACCEPT=100
/*
This trick we use to split input record into 4
outfiles.
6

7. OUTREC OVERLAY=(51:51,100,TRAN=ETOA,
301:301,40,TRAN=ETOA)
7

8. //JK1 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//IN1 DD DSN=... file 1
//IN2 DD DSN=... file 2
//OUT DD DSN=... output file
//SYSIN DD *
JOINKEYS F1=IN1,FIELDS=(1,3,A),SORTED
JOINKEYS F2=IN2,FIELDS=(1,3,A),SORTED
REFORMAT FIELDS=(F1:1,9,F2:5,5)
OPTION COPY
OUTFIL FNAMES=OUT,BUILD=(1,9,X,10,5)
/*
File A
000 $$$$$
File B
001 BBBBB
Output
001 AAAAA BBBBB
8

9. //JK2 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//IN1 DD DSN=... input file1 (FB/18)
//IN2 DD DSN=... input file2 (FB/22)
//OUT DD DSN=... output file (FB/27)
//SYSIN DD *
JOINKEYS F1=IN1,FIELDS=(12,4,A,3,9,A)
JOINKEYS F2=IN2,FIELDS=(1,4,A,6,9,A)
REFORMAT FIELDS=(F2:1,22,F1:1,1,17,2)
OPTION COPY
OUTFIL FNAMES=OUT,BUILD=(1,22,X,23,1,X,24,2)
/*
9

10. //CJ EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//IN1 DD DSN=... input fileA (FB/30)
//IN2 DD DSN=... input fileB (FB/16)
//SORTOUT DD DSN=... output file (FB/36)
//SYSIN DD *
JOINKEYS F1=IN1,FIELDS=(1,10,A)
JOINKEYS F2=IN2,FIELDS=(1,10,A)
REFORMAT FIELDS=(F2:1,16,F1:11,20)
OPTION COPY
/*
10

11. //JK2 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//IN1 DD DSN=... input file1 (FB/25)
//IN2 DD DSN=... input file2 (FB/15)
//SORTOUT DD DSN=... output file (FB/15)
//SYSIN DD *
JOINKEYS F1=IN1,FIELDS=(7,9,A)
JOINKEYS F2=IN2,FIELDS=(1,9,A)
REFORMAT FIELDS=(F2:1,15)
OPTION COPY
/*
=> Now the data is from File2
11

12. //SYSIN DD *
JOINKEYS F1=IN1,FIELDS=(7,9,A)
JOINKEYS F2=IN2,FIELDS=(1,9,A)
JOIN UNPAIRED,F1,ONLY
OPTION COPY
/*
12

13. //JK4 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//IN1 DD DSN=... input file1 (VB)
//IN2 DD DSN=... input file2 (VB)
//SORTOUT DD DSN=... output file (VB)
//SYSIN DD *
JOINKEYS F1=IN1,FIELDS=(11,9,A)
JOINKEYS F2=IN2,FIELDS=(5,9,A)
JOIN UNPAIRED,F1,ONLY
OPTION COPY
/*
13

14. //JK5 EXEC PGM=SORT
//SYSOUT DD SYSOUT=*
//IN1 DD DSN=... input File1 (FB/10)
//IN2 DD DSN=... input File2 (FB/10)
//OUT12 DD SYSOUT=* names in File1 and File2
//OUT1 DD SYSOUT=* names in File1 only
//OUT2 DD SYSOUT=* names in File2 only
//SYSIN DD *
JOINKEYS F1=IN1,FIELDS=(1,10,A)
JOINKEYS F2=IN2,FIELDS=(1,10,A)
JOIN UNPAIRED,F1,F2
REFORMAT FIELDS=(F1:1,10,F2:1,10,?)
OPTION COPY
OUTFIL FNAMES=OUT12,INCLUDE=(21,1,CH,EQ,C'B'),
BUILD=(1,10)
OUTFIL FNAMES=OUT1,INCLUDE=(21,1,CH,EQ,C'1'),
BUILD=(1,10)
OUTFIL FNAMES=OUT2,INCLUDE=(21,1,CH,EQ,C'2'),
BUILD=(11,10)
/*
14

15. OUTFIL FNAMES=FBVB1,FTOV
OUTFIL
FNAMES=FBVB2,FTOV,BUILD=(1,10,C'=',21,10)
15

16. SUM FIELDS=NONE,XSUM
SUM FIELDS=NONE => it will not keep
duplicates. It will remove duplicate records.
16

17. http://srinimf.com/2012/04/26/jcl-sort-pd-to-
zd-with-length-calculation/
17

18. These will be used for report generation purpose.
Some shops use SORT, and others use Easytrieve.
Just go through reference section. These are
commonly asked questions in Interviews.
18

19. ftp://ftp.software.ibm.com/storage/dfsort/m
vs/sorttrck.pdf
19

20. 20
Thank You
www.srinimf.com