cobol3.hlp (Topic list)
File Status "02" (↑ File Status Codes)
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  File Status:  02
 
  Reason:       Indexed files only. One of two possibilities:
 
                 -  For a READ statement, the key value for the current key
                    is equal to the value of that same key in the next
                    record within the current key of reference.
 
                 -  For a WRITE or REWRITE statement, the record just
                    written created a duplicate key value for at least one
                    alternate record key for which duplicates are allowed.
                                    -♦-