Any way to SQLBulkCopy “insert or update if exists”?

Question

I need to update a very large table periodically and SQLBulkCopy is perfect for that, only that I have a 2-columns index that prevents duplicates. Is there a way to use SQLB

Answer 1

I would bulk load data into a temporary staging table, then do an upsert into the final table. See http://www.databasejournal.com/features/mssql/article.php/3739131/UPSERT-Functionality-in-SQL-Server-2008.htm for an example of doing an upsert.