You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 14<br /><br /><br />
        SELECT<br />
          id<br />
        FROM<br />
          classifications<br />
          WHERE<br />
          (id IN (SELECT id_classification FROM devices) <br />
         OR id IN <br />
          (SELECT id_parent FROM classifications WHERE <br />
            id IN (SELECT id_classification FROM devices)<br />
            OR id IN <br />
              (SELECT id_parent FROM classifications WHERE <br />
                id IN (SELECT id_classification FROM devices)<br />
              )<br />
          )) AND standart = <br />
        <br />
          <br />
          <br />
          <br />
        ;<br />