We use a similar approach on Open VMS with some success where we
1) re-create a new oracle_root,
2) shutdown the database,
3) change the startup/login scripts. etc
4) start-up database.
I would not risk it if the patch modifies some catalogs. (ie a new cat*.sql
now exists).
Zarir
-----Original Message-----
Nelson
Sent: 06 February, 2001 05:06
To: Multiple recipients of list ORACLE-L
Not a good idea. Oracle links some libs in with a direcory that is in
Oracle Home.
----- Original Message -----
To: "Multiple recipients of list ORACLE-L" <[EMAIL PROTECTED]>
Sent: Monday, February 05, 2001 3:42 PM
> Hi,
>
> I am looking into installing a patchset with minimum downtime. Standard
> Oracle procedure for installing a patchset is:
> 1. Shutdown the database
> 2. Install the patch binaries, relink.
> 3. Startup database (restrict ?), run the cat* scripts.
>
> I wanted to change the procedure so that instead of having the database
down
> during the patch install and relinking, prior to the procedure I copy the
> binaries to a newly created home, install the patch on the new home,
relink
> the binaries under the new home, and than just restart the database from
the
> new home. To make sure that everything is OK, I would postpone the cat*
> scripts run, for a later time, once I am sure that everything is OK. If
> something goes wrong I haven't changed anything in the database, and I can
> just go back to the old home.
>
> Has anybody tried this ? What is the significance of cat* scripts. As
far
> as I understand them, oracle does not use them and do not care about them,
> only some apps might break (most of all DBA type of scripts).
>
> Thanks.
>
> Djordje
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