Hi Folks,

Thanks for your answers.

@Nevyn: my case is actually more complex, as an example I said 10 columns, 5 relevant and 5 non relevant, but I have a table with more than 40 columns, with at least 25 relevant columns

@Farlzy: that´s an elegant solution and I can solve almost everything in the database, I mean, more in the SQL Server and less in SSIS.

@Phil: you always give useful answers 🙂 I have chosen your solution, in fact I already have a Staging DB to control the information exchange between our Data Mart and the CRM. I think your solution is not only simple to implement but also has a better performance. I´m a fan of the merge command.

Kind Regards,