protected function setMySQLquery2Server($sQuery, $sReturnType = null, $ftrs = null)
    {
        if (is_null($sReturnType)) {
            $this->mySQLconnection->query(html_entity_decode($sQuery));
            return '';
        } elseif (is_null($this->mySQLconnection)) {
            return ['customError' => $this->lclMsgCmn('i18n_MySQL_ConnectionNotExisting'), 'result' => null];
        }
        $result = $this->mySQLconnection->query(html_entity_decode($sQuery));
        if ($result) {
            return $this->setMySQLquery2ServerConnected(['Result' => $result, 'RType' => $sReturnType, 'F' => $ftrs]);
        }
        $erM  = [$this->mySQLconnection->errno, $this->mySQLconnection->error];
        $cErr = sprintf($this->lclMsgCmn('i18n_MySQL_QueryError'), $erM[0], $erM[1]);
        return ['customError' => $cErr, 'result' => null];
    }