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- all you need is a condition.. If..Then..Else. End If. Also try avoid to use query as string.. add parameters to your command.. You have so many ways to do this.. preprocess excel file.. or before insert, ask db, if the record existsPeter Ksenak– Peter Ksenak2019-06-14 11:45:22 +00:00Commented Jun 14, 2019 at 11:45
- Set a unique constraint on the database table?FunThomas– FunThomas2019-06-14 11:50:05 +00:00Commented Jun 14, 2019 at 11:50
- A unique constraint would work but if i wanted to add new rows for same id, same month but with different years how could i do that?Johnny Abreu– Johnny Abreu2019-06-14 13:40:09 +00:00Commented Jun 14, 2019 at 13:40
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