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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Wrapping all tables with packages and scalability
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
June 2004 UK - Optimising Oracle Seminar July 2004 USA West Coast, Optimising Oracle Seminar August 2004 Charlotte NC, Optimising Oracle Seminar September 2004 USA East Coast, Optimising Oracle Seminar September2004 UK - Optimising Oracle Seminar
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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