FreeLists / oracle-l / Re: Wrapping all tables with packages and scalability

["Jonathan Lewis" <jonathan@xxxxxxxxxxxxxxxxxx>]

I don't know how you are calculating the
parse/execute ratio, but the reason I
pointed out that feature of ref cursors
was that it results in a higher level of
parse calls then you might expect.

Whether or not it's responsible for your
ratio is something I can't decide for you.

If your application is doing all it's data
calls through code like:

    local_var := function_call(params);
    array_fetch from local_var;
    procedure_call_close(local_var);

Then every data fetch would result in a parse
call, so the number of parses per executes
would be high.


(As an aside - if this is the case, you could
improve the hit ratio by using single row fetches
instead of an array fetch ;)  (Don't take that
remark seriously, I saw your earlier comment
about hit ratios not being a good target)


Regards

Jonathan Lewis
http://www.jlcomp.demon.co.uk

The Co-operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html

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----- Original Message ----- 
From: "Ryan" <ryan.gaffuri@xxxxxxx>
To: <oracle-l@xxxxxxxxxxxxx>
Sent: Sunday, May 02, 2004 5:10 PM
Subject: Re: Wrapping all tables with packages and scalability


Jonathan,

could this be what is limiting hte parse/execute ratio? I know ratios aren't
the be all and end all, but I do not have access to that system.
Still its an intriguing question.




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