Re: set current_schema & PLS-00201

Good info, thanks. Guess it's not the only bug with current_schema. Found info on Metalink indicating that alter current_schema then accessing views via PL/SQL is another possible bug being investigated. Whew, haven't totally lost my mind.

Which brings us back to Darlene's point of referencing the view as schema.view_name or creating a synonym. Those are the workarounds for this problem. Sadly, we're back to using synonyms for now...

"Khedr, Waleed" wrote:
>
> Just for your knowledge there is small bug that I reported to Oracle and
> it's with development now.
>
> It's simply when user1 does alter session set current schema to user2 --->
> the default temp tablespace for user2 becomes effective for user1 during the
> session.
>
> regards,
>
> Waleed
>
> -----Original Message-----
> Sent: Tuesday, April 23, 2002 1:06 PM
> To: Multiple recipients of list ORACLE-L
>
> When session is altered to the schema that owns the object, schema
> qualification isn't needed. Our reason for eliminating the use of
> public/private synonyms (where possible) is from a performance point of
> view on the library cache. Steve Adams explains it best
> http://www.ixora.com.au.
>
> Alter session is working for all of our clients except those using
> PL/SQL. I'm stumped.
>
> Darlene Marley wrote:
> >
> > The view will always have to have the schema qualification without a
> > synonym:
> > select from y.view_name.
> > I use roles, synonyms and stored procedures extensively in my application
> > and the combination has worked well so far. Is there a reason in your
> case
> > for not using synonyms?
> > Darlene
> >
> > Suzy Vordos wrote:
> >
> > > I understand that privileges granted via role are disabled within stored
> > > procedures, so privileges need to be granted explicitly to the user,
> > > else PLS-00201 error is returned.
> > >
> > > We have a situation where user X connects to the database, executes
> > > select against user Y's view using PL/SQL, and receives the PLS-00201
> > > error. User X has explicit select grants to Y's view, not grants via
> > > role. We are using a logon trigger which sets X's current_schema user
> > > Y. Here's what it looks like:
> > >
> > > grant create session to user X;
> > > grant select on Y.view_name to X;
> > >
> > > X connects to database
> > > login trigger execs 'alter session set current_schema=Y'
> > > PL/SQL code selects from view_name, PLS-00201 error returned
> > >
> > > To eliminate this error, the workaround was to create a public synonym
> > > (ick) with select grants to user X.
> > >
> > > The client is executing PL/SQL code within their application, not
> > > executing a PL/SQL code stored in the database (if that makes a diff).
> > >
> > > The whole point of using the logon trigger was to eliminate the use of
> > > public/private synonyms. I'm missing where user X inherited privs via
> > > role when we didn't grant privs via role. Is it related to altering
> > > current_schema, or is it something more obvious??
> > >
> > > Thanks,
> > > Suzy
> > > --
> > > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > > --
> > > Author: Suzy Vordos
> > > INET: lvordos_at_qwest.com
> > >
> > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
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> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > --
> > Author: Darlene Marley
> > INET: dmarley_at_sfwmd.gov
> >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Suzy Vordos
> INET: lvordos_at_qwest.com
>
> Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California -- Public Internet access / Mailing Lists
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Khedr, Waleed
> INET: Waleed.Khedr_at_FMR.COM
>
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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Suzy Vordos
  INET: lvordos_at_qwest.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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