APPEND :
IT IS USED TO GET THE RECORD FROM THE INTERNAL TABLE HEADER TO THE BODY AREA IT ALLOWS DUPLICATION
COLLECT:
IT IS USED TO A GET A RECORD FROM HEADER TO THE BODY AREA BUT IT WILL NOT ALLOW ANY DUPLICATION EXCEPT IF THERE IS ANY NUMERIC FIELS IT ADDS THAT FIELDS DATA BUT NOT AS A NEW RECORD
If an entry with the same key already exists, the COLLECT statement does not append a new line, but adds the contents of the numeric fields in the work area to the contents of the numeric fields in the existing entry.
IT IS USED TO GET THE RECORD FROM THE INTERNAL TABLE HEADER TO THE BODY AREA IT ALLOWS DUPLICATION
COLLECT:
IT IS USED TO A GET A RECORD FROM HEADER TO THE BODY AREA BUT IT WILL NOT ALLOW ANY DUPLICATION EXCEPT IF THERE IS ANY NUMERIC FIELS IT ADDS THAT FIELDS DATA BUT NOT AS A NEW RECORD
If an entry with the same key already exists, the COLLECT statement does not append a new line, but adds the contents of the numeric fields in the work area to the contents of the numeric fields in the existing entry.