Comments on: Optimizer Features http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/ Just another Oracle weblog Mon, 20 May 2013 17:10:14 +0000 hourly 1 http://wordpress.com/ By: Fix Control « Oracle Scratchpad http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-39332 Sat, 29 Jan 2011 10:15:47 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-39332 [...] I read Coskan’s notes I had forgotten that I had written a short item about this myself about a year ago where I listed the  relatively small number of  items [...]

]]> By: Blogroll Report – 18/12/2009-25/12/2009 « Coskan’s Approach to Oracle http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35163 Wed, 06 Jan 2010 19:45:04 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35163 [...] 7-How to see optimizer features in your current release (v$system_fix_control)? Jonathan Lewis-Optimizer Features [...]

]]> By: Andy Campbell http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35100 Sun, 27 Dec 2009 07:43:37 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35100 There was a Post by Fairlie Rego a while ago that gave examples of enabling/disabling specific bug fixes …

http://el-caro.blogspot.com/2007/06/fix-control.html

Andy

]]> By: Jonathan Lewis http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35069 Thu, 24 Dec 2009 07:49:38 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35069 Fidelinho,
I guess a good example of that would be the 11.1.0.8 fixes that adrian sees in 11.1.0.7 – could we guess that the bug fix has been registered in the earlier version even though it is not enabled by default until the later version.

There’s an interesting note on the Pythian blog about v$fix_control – check comment number 3 in particular.

]]> By: fidelinho http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35064 Wed, 23 Dec 2009 18:40:52 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35064 The parameter “_fix_control” allows you also to enable “bug fixes” that oracle delivers deactivated by default. Some times, after install a patch (patch set) you need to enable the one that “fixes” your issue

]]> By: adrian bowden http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35060 Wed, 23 Dec 2009 12:41:30 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35060 Very interesting Jonathan. I ran your query on our 11.1.0.7 db and got back some 11.1.0.8 features !

]]> By: Doug's Oracle Blog http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35056 Tue, 22 Dec 2009 23:06:53 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35056 A Good Day ……

… in the Oracle blogosphere. Well, whether all these posts were ‘today’ depends on timezones, I suppose, but it’s today that I read them. My morning started with a read of this fine post by Cary Millsap. I immediately shared it around at work beca…

]]> By: Jonathan Lewis http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35055 Tue, 22 Dec 2009 20:57:19 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35055 Jimmy,

I think it appeared in 10.2.0.2.

]]> By: Jimmy Brock http://jonathanlewis.wordpress.com/2009/12/22/optimizer-features/#comment-35054 Tue, 22 Dec 2009 19:55:28 +0000 http://jonathanlewis.wordpress.com/?p=2697#comment-35054 Jonathan,

It appears the view v$system_fix_control is only available on 10.2.0.3 or higher. Is that correct? I tried it on 10.2.0.1 and got ‘table or view does not exist’.

jbrock@orcl-local> select synonym_name from dba_synonyms where synonym_name like ‘V$SYSTEM_%’;

SYNONYM_NAME
——————————
V$SYSTEM_CURSOR_CACHE
V$SYSTEM_EVENT
V$SYSTEM_PARAMETER
V$SYSTEM_PARAMETER2
V$SYSTEM_WAIT_CLASS

jbrock@orcl-local> select view_name from dba_views where view_name like ‘V_$SYSTEM_%’;

VIEW_NAME
——————————
V_$SYSTEM_PARAMETER
V_$SYSTEM_PARAMETER2
V_$SYSTEM_WAIT_CLASS
V_$SYSTEM_EVENT
V_$SYSTEM_CURSOR_CACHE

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