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Re: ORA-3113 During delete from with subquery

Stephane Faroult

2005-04-25

Replies:


Scott Stefick wrote:

>Anyone else experience this?
>OS: Solaris 8
>DB: 10g (10.1.0.3)
>My delete returns an ORA-3113 when I execute this on my 10g databases,
>but it works fine on my 8.1.7 databases.
>
>Here is my DML:
>
>DELETE FROM v_trn_event_attendees=20
>WHERE pers_id =3D 86409
>AND class_id IN (SELECT a.class_id=20
>                FROM trn_events e, trn_event_attendees a =20
>                WHERE e.class_id =3D a.class_id=20
>                AND pers_id =3D 86409
>                AND element_id =3D 1015891
>                AND date_conducted =3D (select max(date_conducted)=
>=20
>                                        from
>trn_events e, trn_event_attendees a
>                                        where
>e.class_id =3D a.class_id
>                                        and pers_id =3D=
>86409
>                                        and
>element_id =3D 1015891
>                                        and
>date_conducted <=3D '25-APR-2005'))
>/
>
>
>Thanks in advance..
>Scott
>--
>
>
Scott,

  A 3113 error is usually associated with a .trc file in the
user_dump_dest directory. It may give a clue, but it smells like a bug.
Rewriting queries also sometimes magically works around bugs.

Try this (I hope the values are hard-coded for testing purposes only.
Also, avoid relying on implicit date formats)

DELETE FROM v_trn_event_attendees
WHERE (pers_id, class_id) IN
  (SELECT pers_id, a.class_id
  FROM trn_events e,
      trn_event_attendees a
  WHERE e.class_id = a.class_id
    AND (pers_id, element_id, date_conducted) =
          (select pers_id, element_id, max(date_conducted)
          from trn_events e,
              trn_event_attendees a
          where e.class_id = a.class_id
            and pers_id = 86409
            and element_id = 1015891
            and date_conducted <= to_date('25-APR-2005', 'DD-MON-YYYY')
          group by pers_id, element_id))
/


If you have the composite indexes I think you have, it may work well.
You can probably do even better with analytic functions.

HTH,

SF

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