Tuning Oracle ODP

I read the article on tuning ODP for .NET at
http://www.oracle.com/technology/tech/windows/odpnet/ODP.NET-FOV.html
It mentioned three areas of tuning,
1. Connection pooling - which I guess can be done within the connection string
2. Prefetching rows
3. Data chunk size
My question is for setting 2 and 3, can anyone give any examples of the best way to implement tuning for Prefetch and Data chunk size. Also we are working with reading and writing large XML from the database - the performance is terrible, the bottleneck is the ODP. Can anyone give any advice on how we can improve performance for read and write xml operations, the xml data is held within a SYS.XMLTYPE field.
thank you

Hi,
thanks for the response. I have a table which has a datatype of SYS.XMLTYPE which a web application will write to. For reasons to lengthy to explain I can't use array binding so I have a stored procedure that executes a single insert and that is called 400 times. The typical size of the xml data is between 100 to 500 kb. The database is hit hard because of the volume of users of the site. So I was interested to know which of the tuning options might return the best performance so I was really looking to see if there was an approach that one could follow to know which options to set and also what values to set them to (kind of best -guess options to start off with). Given this additional information would you be able to either share advice on what options you would first try and set or perhaps if you know of an online resource which outlines an approach could you point me towards that. Thank you again for your response.

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can you please suggest some key points for starting with and some good links for future usage.Please check below MOS doc:-
A Holistic Approach to Performance Tuning Oracle Applications Systems [ID 69565.1]
Configuring various JVM tuning parameters for Oracle E-Business suite 11i and R12 [ID 567551.1]
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2) Form Server
3) Concurrent processing server
4) Discovered if using,
5) XML publisher..
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Log file you have mentioned can be removed depedning upon your company policy if any.
Thanks,
JD

Oracle ODP Support and ODP vs DEVART

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Fine tuning Oracle database using EM DB control

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Hi all,
Query executes for more 1.5 hours. fetches the data from a remote database. more than million records.
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I think I am getting conflicting information about how many rows are in the remote table.
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How many match the status code condition by itself?
How many match the lib_code condition by itself?
How many rows match all conditions (the number returned by the query)?
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Hi,
At present we have 8GB physical RAM on Production server while the parameters sga_max_size = 1 GB and pga_aggregate_target = 629 MB are defined.
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check following SAP Notes
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Note 830576 - Parameter recommendations for Oracle 10g
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TM.TASK_DESC,
RM.RESOURCE_DESC,
PC.PROCESS_DESC
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DWH_MCD.PARAMETER_TYPE PT
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Thank You.
Best Regards,
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Jawahar,
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<xs:field xpath="mstns:PLANETYPE" />
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Is there a better way to reference the code for the navigation buttons?

<bump>
Can anyone from Oracle assist me with this issue?

Tuning Oracle Database - SGA Memory

Good morning Gurus,
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Gerd Kirchner wrote:
> Note 617416 is pretty old (2006), you should follow note 830576 for 10g and there is no sga_max_size mentioned.
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SHARED_POOL_SIZE                 400 MB or greater, refer to Note 690241
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If it is set to small, Oracle will adjust it.
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