Re: forced code path?

It doesn't mean anything exciting or
exotic, I was just trying to express the idea that sometimes Oracle will execute
one piece of (internal) code because of
an init.ora parameter, hint, visible set of table statistics etc. rather than taking another path which you might typically
expect it to take.

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

Author of:
Practical Oracle 8i: Building Efficient Databases

Next Seminar - Australia - July/August
http://www.jlcomp.demon.co.uk/seminar.html

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

-----Original Message-----
To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com> Date: 18 April 2002 16:23

|One of Mr Jonathan Lewis' posts refers to 'forced code paths'. What
is a
|'forced code path'?
|
|regards
|madhu
|
|>There are a number of possible anomalies in the
|>information that you have sent to Oracle, and your
|>init.ora has a number of strange settings which may
|>be affecting things (possibly because of bugs,
|>possibly because of resource demands and forced
|>code paths). However, based on your initial description,
|>I think Oracle is chewing up CPU trying to optimize
|>your query, and I would take steps to check whether
|>this is actually the case (e.g. keep reducing the size
|>of the IN list).
|>
|

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Author: Jonathan Lewis
  INET: jonathan_at_jlcomp.demon.co.uk

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