>It looks like you always have just one record per iID and iTraiterID in Agenda, e.g. iID is unique and iTraiterID is unique. Scratch my code then. I need to think a bit more.
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Ok, after thinking a bit more I now don't understand what are the requirements. If iID in Agenda is unique and iTraiterID is unique, when based on what you're going to update Agenda?

Can you please start a new thread and put the test data and the result that you want to achieve?