How do you write omit condition in JCL?
JCL – SORT OMIT Condition Use an OMIT statement if you do not want all of the input records to appear in the output data sets. The OMIT statement selects the records you do not want to include. You can specify either an INCLUDE statement or an OMIT statement in the same DFSORT run, but not both.
How do I remove duplicates in Cobol?
If you will sort the file with an external sort prior to reading it in the cobol program you can remove the duplicates with the SORT keyword EQUALS. If you sort the file prior to the cobol program and do not drop duplicates then a simple IF statement and a save field will allow you to delete the dups.
How do I remove duplicates in VSAM?
Use SORT to sort the file on the VSAM key and use SUM FIELDS=NONE to remove duplicate keys.
What is the use of include omit condition in sort JCL?
INCLUDE OMIT condition in SORT JCL. You can use the INCLUDE OMIT statement in conjunction with other options to select/omit the number of records to be processed, which can reduce processor and data transfer time. The INCLUDE and OMIT statements allow you to select records by comparing fields with constants or other fields.
When should I use the omit control statement?
Use the OMIT control statement for any or all input records that are not to appear in the output file. SORT FIELDS=COPY OMIT COND= (1,2,CH,EQ,C’NY’,OR,1,2,CH,EQ,C’NJ’, OR,1,2,CH,EQ,C’CT’,OR,1,2,CH,…)
What is the difference between include and omit statements?
Use an OMIT statement if you do not want all of the input records to appear in the output data sets. The OMIT statement selects the records you do not want to include. You can specify either an INCLUDE statement or an OMIT statement in the same DFSORT run, but not both.
What is the difference between the omit and the outfil parameters?
The OMIT statement applies to all input records; the OMIT parameter applies only to the OUTFIL input records for its OUTFIL group. FORMAT=f can be specified with the OMIT statement but not with the OMIT parameter. Thus, you can use FORMAT=f and p,m or p,m,f fields with the OMIT statement, but you must only use p,m,f fields with the OMIT parameter.