Answer Posted / dillip kumar mishra

We have to check the key field is there in database table or not.
if we are storing uploaded data into internal table let's say ITAB.
Then we should check like as follows.
loop at itab.
select * from <database table> where <primary key> = itab-key.
if sy-subrc = 0.
logic for update.
else.
write:'Document Exists'.
continue.
endif.
endloop.

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