RE: Re[2]: What Sort of Privilege?

I wouldn't say "Wrong". 

Perhaps it is more a matter of preference. There are good and bad sides
to both..

Mark


-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Goulet, Dick
Sent: 24 August 2004 14:12
To: oracle-l@xxxxxxxxxxxxx
Subject: RE: Re[2]: What Sort of Privilege?


Tom,

        Sorry, but you are wrong.  I prefer the many schema method as
well.

Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA

-----Original Message-----
From: Mercadante, Thomas F [mailto:thomas.mercadante@xxxxxxxxxxxxxxxxx]
Sent: Tuesday, August 24, 2004 8:21 AM
To: 'oracle-l@xxxxxxxxxxxxx'
Subject: RE: Re[2]: What Sort of Privilege?


Jo,

Well,  The Oracle Apps applications have many schema's - much like what
= you described. I'm guessing that the majority of home-grown
applications have only one schema for all of the tables.  I could be
wrong.  In my view, it is = easier to manage.  Everything is in one
place.  It prevents you from creating = two database objects with the
same name.  Managing security is easier - = again, you can issue all
your grants from one schema, rather than needing to = keep re-logging
in.

Maybe it's just me!

Tom Mercadante
Oracle Certified Professional


-----Original Message-----
From: jo_holvoet@xxxxxxxx [mailto:jo_holvoet@xxxxxxxx]=20
Sent: Tuesday, August 24, 2004 8:13 AM
To: oracle-l@xxxxxxxxxxxxx
Cc: 'oracle-l@xxxxxxxxxxxxx'; oracle-l-bounce@xxxxxxxxxxxxx
Subject: RE: Re[2]: What Sort of Privilege?


Hi Tom,

we (well, it was in place before I got here, but anyway) basically
have=20 one schema per application. We also have one schema which houses
= "common"=20 data, i.e. data used in many different places/apps; e.g.
employees,=20 customers, products, plants, .... So we have many
cross-schema FKs to = the=20 "common" data but outside that everything
is pretty well partitioned.=20 Maybe that's why I've never really had
any problems with it.

Is having what is basically a one-schema database common practice ?

mvg/regards

Jo






"Mercadante, Thomas F" <thomas.mercadante@xxxxxxxxxxxxxxxxx>
Sent by: oracle-l-bounce@xxxxxxxxxxxxx
08/24/2004 14:03
Please respond to oracle-l

=20
        To:     "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
        cc:=20
        Subject:        RE: Re[2]: What Sort of Privilege?


Jo,

I guess I should clarify.

If you made a consious decision to maintain multiple schema's within =
your database, then it is your choice.

I prefer one schema holding all of the database tables that make up the
corporate-wide application.

Tom Mercadante
Oracle Certified Professional


-----Original Message-----
From: jo_holvoet@xxxxxxxx [mailto:jo_holvoet@xxxxxxxx]=20
Sent: Tuesday, August 24, 2004 7:58 AM
To: oracle-l@xxxxxxxxxxxxx
Cc: 'oracle-l@xxxxxxxxxxxxx'; oracle-l-bounce@xxxxxxxxxxxxx
Subject: RE: Re[2]: What Sort of Privilege?


Not sure about that. We have for example an employee table that is=20
referenced just about everywhere (e.g. which salesperson is
responsible=20 for this customer, which employee registered for this
training course,=20 which operator filed this incident report, ...).
These are all different =

apps/schemas referencing this table so I don't see how we can avoid=20
cross-schema FKs.

mvg/regards

Jo






"Mercadante, Thomas F" <thomas.mercadante@xxxxxxxxxxxxxxxxx>
Sent by: oracle-l-bounce@xxxxxxxxxxxxx
08/24/2004 13:49
Please respond to oracle-l

=20
        To:     "'oracle-l@xxxxxxxxxxxxx'" <oracle-l@xxxxxxxxxxxxx>
        cc:=20
        Subject:        RE: Re[2]: What Sort of Privilege?


Peter,

I totally agree with you.  Allowing Fk references from outside of the=20
schema is inviting confusion, duplication and disaster.  There is really
no = good reason for it.

Tom Mercadante
Oracle Certified Professional


-----Original Message-----
From: Peter Robson [mailto:pgro@xxxxxxxxx]=20
Sent: Tuesday, August 24, 2004 4:57 AM
To: Jackie Brock
Cc: oracle-l@xxxxxxxxxxxxx
Subject: Re[2]: What Sort of Privilege?


Whoa there everybody!

While the answer is quite correct, of course (I read the FM years
ago),=20 what has not been raised is the danger of allowing reference to
multiply unhindered across numerous schemas.

Be very careful if you choose to do this, otherwise, without a little=20
care, you may manage to lock your entire database solid with conflicting
FKs!

We did, learned our lesson, and now reference is ONLY permitted within =
the one corporate schema.


peter
edinburgh
.............


JB> references


JB> All,

JB> what kind of privilege new for creating a FK constraint which=20 
JB> reference table belongs to another schema.

JB> ALTER TABLE PAM.table1
JB>  ADD CONSTRAINT FKCONS1
JB>  FOREIGN KEY (ID)
JB>  REFERENCES schema1.table2 (ID2);

JB> I have grant select,insert,update,delete for table2 BUT still I 
JB> get=20 insufficient privilege. any idea?


JB> Hamid Alavi


--=20
    mailto:pgro@xxxxxxxxx



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