Table of Contents
How to use JOINKEYS in SORT Jcl?
With the help of JOINKEYS in SORT JCL, various join operation on matched and non-matched records can be executed based on matching fields or Keys. Joining can be performed in number of ways like inner join, full outer join, left outer join, right outer join and unpaired combinations.
Can we use JOINKEYS for VSAM file?
Keyword: TYPE with JOINKEYS TYPE=V can be used to tell DFSORT to use variable-length processing for a VSAM input file. TYPE=F (the default) can be used to tell DFSORT to use fixed-length processing for a VSAM input file.
What is reformat fields in Joinkeys?
A REFORMAT statement can always be used for a JOINKEYS application, and is required unless a JOIN statement with the ONLY operand is specified. The REFORMAT statement indicates the fields from the F1 file and/or the F2 file you want to include in the joined records, and the order in which you want the fields to appear.
How do I use overlay in mainframe?
To overlay one or more single lines:
- Type either M or C in the line command field of the line that is to be moved or copied.
- To specify a single destination for the data that is to be moved or copied, type O in the line command field of the line that the moved or copied line is to overlay.
- Press Enter.
When to use joinkeys statement for F1 file?
When FILE=F1, FILES=F1 or F1=ddname is specified, the other operands of the JOINKEYS statement apply to the F1 file. Must be used for the JOINKEYS statement associated with the F2 file.
What are the requirements for each joinkeys statement?
Each JOINKEYS statement must specify the DDNAME of the file it applies to and the starting position, length, and sequence of the keys in that file. You can also optionally specify If the file is already sorted by the keys and if sequence checking of the keys is not needed. If the file has fixed-length or variable-length records.
What is the format of the joinkeys file?
JOINKEYS FILE=F1,FIELDS= (35,8,A), OMIT= (5,4,CH,EQ,C’ABCD’) JOINKEYS FILE=F2,FIELDS= (37,8,A), INCLUDE= (1,20,SS,EQ,C’NO’) Only records without ‘ABCD’ in positions 5-8 will be processed from file F1.
How to join two files using sort?
JOINKEYS joining two files using SORT. You can perform join on two files (F1 and F2) by one or more keys using SORT. You must specify two JOINKEYS statements; one for the F1 file and another for the F2 file. A separate subtask will be used to process each file and the main task will be used to process the joined records from the two files.