private function consultMySql(){

        $cSQL = "SELECT SUM(CRIME.id), " .
                "PRIMARY_TYPE.Type " .
                "FROM CRIMES.CRIME " .
                "INNER JOIN PRIMARY_TYPE " .
                "ON CRIME.Type = PRIMARY_TYPE.id " .
                "WHERE Distric = ? AND " .
                "PRIMARY_TYPE.Type = ? " .
                "AND CRIME.anno = ?; "  ;

        if($this->stmt = $this->oConni->prepare($cSQL)){
        $this->stmt->bind_param('isi', $this->request["data"]["district"], $this->request["data"]["type"],$this->request["data"]["anno"] );
        $this->stmt->execute();
        $this->stmt->store_result();
        $this->stmt->bind_result($Total, $Type);
        while ($this->stmt->fetch()) {
            $this->data[] = array("Total" => $Total, "Type" => $Type);
        }
        }else{
            $this->stmt->error;
        }

    }