Suppose we are transfer data through BDC from legacy to SAP
and their is some duplicate data in legacy system but we
don’t want this in SAP system .So how can we check that this
data is already exist ?
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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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