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Pete Finnigan
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Determining last installed CPU from database
« on: Oct 4th, 2006, 12:30pm »
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Hello all,  
 
  does anyone know some smart and reliable way of determining which CPU was last installed from running instance? I know you can get it from opatch, but I'm more interested in getting the info from instance only.
 
The goal is an automated script that would obtain this info from large number of databases on multiple servers, different platforms.
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Re: Determining last installed CPU from database
« Reply #1 on: Oct 4th, 2006, 4:25pm »
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Hi,
 
Getting the last CPU installed is not easy or reliable. If you have older databases then there were differnet methods to install patches i.e. shell scripts, the OUI and OPatch. Even if you have consistency and all patches are installed via OPatch then listing out with OPatch may not be reliable if all of the post installation steps were not run or didnt complete.
 
You can use OEM in later versions but this uses the repository anyway. You could also query the repository that OPatch uses directly but whats the point. The method used by some is to checksum the packages that have been updated before and after CPU's and then compare the checksums. This can be done remotely via PL/SQL but you need to know the checksums!
 
cheers
 
Pete
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Re: Determining last installed CPU from database
« Reply #2 on: Oct 4th, 2006, 5:20pm »
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Thanks!  I knew about checksumming packages, I was just hoping that there would be easier way Smiley
 
Thank you anyway, your website and blog are wery useful!
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Re: Determining last installed CPU from database
« Reply #3 on: Nov 2nd, 2006, 10:31am »
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what about using dba_registry_history ? Note it does not show the patches applied to the oracle home before the database has been created.
Code:

select ACTION_TIME,COMMENTS,ID from dba_registry_history;
 
ACTION_TIME  COMMENTS      ID
---------------------- ---------- ----------
20.10.2006 09:48:51.11 CPUOct2006    5490848
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Re: Determining last installed CPU from database
« Reply #4 on: Nov 2nd, 2006, 11:12am »
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Thank you, that is basically what I was looking for!
 
Unfortunately, it should be noted this view is new in 10gR2 so it does not help with old instances.
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Re: Determining last installed CPU from database
« Reply #5 on: Nov 2nd, 2006, 11:23am »
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it is available in later 9iR2 and 10gR1 too
 
Code:

SQL> select version from v$instance;
VERSION
-----------------
9.2.0.8.0
 
SQL> select ACTION_TIME,COMMENTS,ID from dba_registry_history;
 
no rows selected

 
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Re: Determining last installed CPU from database
« Reply #6 on: Nov 2nd, 2006, 11:42am »
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Interesting - my testin 10gR1 does not have it and Oracle lists it as a new feature of 10gR2 (http://dba-services.berkeley.edu/docs/oracle/manual-10gR2/server.102/b14 237/whatsnew.htm#i202863)
 
Maybe it's silently installed by latest patchsets even on older releases Smiley
 
Thanks for you help and interest !  I've just added your blog to my RSS reader Wink
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Re: Determining last installed CPU from database
« Reply #7 on: Nov 2nd, 2006, 11:55am »
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I think it started with 10.1.0.4 + CPU January and all patches released later. Not 100% about the exact release...
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Re: Determining last installed CPU from database
« Reply #8 on: Nov 2nd, 2006, 12:31pm »
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Since CPU jan 2006 you can use sys.registry$history
Check Note:352783.1
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Re: Determining last installed CPU from database
« Reply #9 on: Nov 2nd, 2006, 12:34pm »
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Unfortunately dba_registry_history does not exist in 9i.
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Re: Determining last installed CPU from database
« Reply #10 on: Nov 2nd, 2006, 1:16pm »
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on Nov 2nd, 2006, 12:34pm, Marcel-Jan wrote:
Unfortunately dba_registry_history does not exist in 9i.

 
please read my post above
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Re: Determining last installed CPU from database
« Reply #11 on: Nov 2nd, 2006, 1:17pm »
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Thanks Laurent ! The Metalink note is very useful!
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