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E61 user exit: modifying control fields z/OS DFSORT Application Programming Guide SC23-6878-00 |
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You can use a routine at this user exit to lengthen, shorten, or
alter any control field within a record. The E option for the s parameter
on the SORT or MERGE control statement must be specified for control
fields changed by this routine as described in MERGE control statement and SORT control statement. After your routine modifies the control field, DFSORT
collates the records in ascending order using the format(s) specified.1
Note:
1 With a conventional merge or a tape work data set sort,
control fields for which E is specified are treated as binary byte
format regardless of the actual format(s) specified.
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Copyright IBM Corporation 1990, 2014
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