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

Got a hint from @Ivan. For those who might need, here's what I did.

create trigger yourschma.Tr_your_triger_name
    on yourschma.yourtable
    instead of INSERT
    as
    merge into yourschma.yourtable as target
    using inserted as source
    on (target.yourtableID = source.yourtableID)
    when matched then
        update
        set target.ID     = source.ID,
            target.some_column = source.some_column,
            target.Amount                       = source.Amount
    when not matched by target then
        insert (some_column, Amount)
        values (source.some_column, source.Amount);
go