For Each dtRowa As DataRow In dt.Rows
    For Each dtRow As DataRow In SQLDataTable.Rows
        If dtRow("ID") = dtRowa("ID") Then
            Sql = "UPDATE AlphaTbl SET LASTNAME ='" + dtRowa("LASTNAME") + "',FIRSTNAME= '" +
                        dtRowa("FIRSTNAME") + "' WHERE ID= '" + dtRowa("ID") + "' "
            Dim cmd As New SQLiteCommand(Sql,_SQLiteCon)
            cmd.ExecuteNonQuery()
        End If
    Next
Next

请寻求帮助，以解决此问题