@staticmethod
def get_setclause(columnsname):
    """
            DumpSQLUtils.get_setclause()

            create a string (a "SET clause") suitable for a SQL request.
        """
    setstring = []
    for columnsname_key in columnsname:
        setstring.append('{0} = ?'.format(columnsname_key))
    setstring = ', '.join(setstring)
    return 'SET ' + setstring
