Answer / upendra

before upload the data using bdc check the data in program and delete the duplicate data

Answer / 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.

difference between bapi and rfc

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Explain the function module in bdc?

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