Per la precisione mi da questo errore

Microsoft OLE DB Provider for ODBC Drivers error '80040e14'

[Microsoft][ODBC SQL Server Driver][SQL Server]The column name 'prezzosc' is specified more than once in the SET clause. A column cannot be assigned more than one value in the same SET clause. Modify the SET clause to make sure that a column is updated only once. If the SET clause updates columns of a view, then the column name 'prezzosc' may appear twice in the view definition.

/STORE/chekout.asp, line 85

alla linea 85 ho la query sopra indicata dell'inserimento