Re: Using a trigger to turn on tracing
- From: Paul Baumgartel <treegarden@xxxxxxxxx>
- To: oracle-l@xxxxxxxxxxxxx
- Date: Mon, 16 Feb 2004 08:13:38 -0800 (PST)
Daniel,
PL/SQL does not require direct granting; stored objects, including
views, do. An anonymous block using privileges granted via a role will
work:
oet@PBD1> select * from user_sys_privs;
USERNAME PRIVILEGE
ADM
------------------------------ ----------------------------------------
---
OET CREATE SESSION
NO
OET SELECT ANY DICTIONARY
NO
oet@PBD1> begin
2 execute immediate 'alter session set sql_trace=true';
3 end;
4 /
PL/SQL procedure successfully completed.
oet@PBD1> create procedure foo as
2 begin
3 execute immediate 'alter session set sql_trace=false';
4 end;
5 /
Procedure created.
oet@PBD1> exec foo
BEGIN foo; END;
*
ERROR at line 1:
ORA-01031: insufficient privileges
ORA-06512: at "OET.FOO", line 3
ORA-06512: at line 1
--- "Daniel W. Fink" <Daniel.Fink@xxxxxxx> wrote:
> Peter,
>
> The problem is not ALTER SESSION (which is granted to the user via
> CREATE role).
>
> The problem is that the creator of the trigger needs to have CREATE
> ANY TRIGGER
> granted to it directly. PL/SQL requires direct granting and triggers
> are pl/sql
> units. This privilege is part of the DBA role, so the creation of the
> tigger
> succeeds, but the execution fails. Grant CREATE ANY TRIGGER directly
> and there
> won't be a problem. If you create this trigger as SYS, you don't run
> into the
> problem, but as any other user (including SYSTEM), you get dinged.
>
> It's irritating in that the trigger creates without error, but the
> execution
> fails. It would be nice if Oracle would report the error on creation.
>
> Daniel Fink
>
> "Schauss, Peter" wrote:
>
> > I am trying to use a trigger to turn on tracing for a specified
> user.
> > I copied the example from Cary Millsap's _Optimizing Oracle
> Performance_.
> >
> > The text of the trigger is:
> >
> > create or replace trigger trace_user after logon on database
> > begin
> > if user = 'TEST' then
> > execute immediate 'alter session set
> timed_statistics =
> > true';
> > execute immediate 'alter session set
> max_dump_file_size =
> > unlimited';
> > execute immediate
> > 'alter session set events ''10046
> trace name
> > context forever, level 8''';
> > end if;
> > end;
> > /
> >
> > When I try to log on as user TEST, I get:
> >
> > ORA-00604: error occurred at recursive SQL level 1
> > ORA-01031: insufficient privileges
> > ORA-06512: at line 5
> >
> > What privilege does TEST need here?
> >
> > Thanks,
> > Peter Schauss
> > ----------------------------------------------------------------
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