Re: dbms_stats.set_systems_stats anomaly
- From: Jared Still <jkstill@xxxxxxxxx>
- To: Oracle-L Freelists <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 25 Sep 2009 16:58:53 -0700
Thanks Wolfgang
I should have just used import_stats to start with.
There are a few inconsistencies in the API
Jared
On 9/25/09, Jared Still <jkstill@xxxxxxxxx> wrote:
> OS: RH Linux 4
> Database: 32bit 10gR2
>
> While working out a method to set some reasonable system statson our
> databases, I find that dbms_stats.set_system_stats is a bit
> of an oddity.
>
> According to the docs:
>
> DBMS_STATS.SET_SYSTEM_STATS (
> pname VARCHAR2,
> pvalue NUMBER,
> stattab IN VARCHAR2 DEFAULT NULL,
> statid IN VARCHAR2 DEFAULT NULL,
> statown IN VARCHAR2 DEFAULT NULL);
>
>
> Too much else to paste, so here the reference FYI:
> http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14258/d_stats.htm#i997707
>
> I have the system stats in a table created with
> dbms_stats.create_stat_table.
>
> When specifying the stattab, statid and statown values, the OS stats
> are not updated from the values in the table.
>
> The arguments are a little odd in that if one were to specify the table
> to retrieve the data from, what is the point of pvalue being a required
> argument?
>
> As it is, I have not seen this work properly unless only the pname and
> pvalue
> argument are used, with me supplying the values as found in the stats
> table (SYSTEM_POPULATE) as created with create_stat_table.
>
> Any insights on this?
>
> It may be in Jonathan Lewis' CBO book, which I have unfortunately
> left at the office, and I am working from home.
>
>
> Jared Still
> Certifiable Oracle DBA and Part Time Perl Evangelist
> Oracle Blog: http://jkstill.blogspot.com
> Home Page: http://jaredstill.com
>
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Jared Still
Certifiable Oracle DBA and Part Time Perl Evangelist
Oracle Blog: http://jkstill.blogspot.com
Home Page: http://jaredstill.com
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