Chuck wrote:
> DA Morgan wrote:
>
>>Noons wrote:
>>
>>
>>>DA Morgan wrote:
>>>
>>>
>>>>>>>TIA
>>>>>>
>>>>>>
>>>>>>
>>>>>>Should they be the same? I would hope so but what version of TOAD
>>>
>>>
>>>and is
>>>
>>>
>>>>>>it one that Quest has certified against 10gR1?
>>>>>
>>>>>
>>>>>
>>>>>The database is 9.2.0.5. I'm using a 10g OEM to look at the top sql
>>>
>>>
>>>(as
>>>
>>>
>>>>>well as a 9i OEM).
>>>>>
>>>>>Toad version is 8.0.0.47 which I believe is certified for all
>>>
>>>
>>>releases
>>>
>>>
>>>>>of Oracle up to 10g.
>>>>
>>>>
>>>>Then I have no explanation for you other than the possibility that
>>>
>>>
>>>they
>>>
>>>
>>>>are using different data dictionary objects from which to formulate
>>>>their answer ... and one of them, hopefully not both of them, is
>>>
>>>
>>>wrong.
>>>
>>>Check out the "plan_table" versions each uses. They need to be up to
>>>date for each of the products. And if any of them uses the Oracle
>>>default one, then that has to match the version in use. And darn it,
>>>they DO change from version to version!
>>
>>
>>Which is precisely why Oracle created the DBMS_XPLAN built-in package.
>>Don't use that package and your chances of getting the correct result
>>decrease dramatically.
>>
>>Also note for the record that building the plan table with UTLXPLAN.SQL
>>is no longer best practice. Instead run CATPLAN.SQL. Stand still very
>>long and Oracle will pass you by.
>
>
> Aren't they both 10g features? I'm on 9i (see OP). All I can figure is
> that somewhere the application is issuing an alter session and changing
> something that affects the execution plan. Is there a view I can query
> to see the parameters in effect for a particular session other than my own?
>
> TIA
CATPLAN.SQL may well be new but DBMS_XPLAN has been around since 9i.
--
Daniel A. Morgan
http://www.psoug.org
damorgan_at_x.washington.edu
(replace x with u to respond)
Received on Sat May 21 2005 - 12:11:51 CDT
