Re: Uknown query

<calberto2312_at_gmail.com> wrote in message news:1167487185.429637.172200_at_h40g2000cwb.googlegroups.com... Hi all,

  In my statspack reports, I´ve been seeing some similar queries that are unknown for me. They are being executed hundreds of times, but I want to find out who is running them. Here´s one of the queries :

select a.default_cpu_cost, a.default_io_cost from association$ a
where a.obj# = :1
  and a.property = :2

  Can you help me?

Thanks in advanced,
Carlos

I think this is one of the recursive queries that runs when you optimise a query that uses domain indexes. Its purpose is to check if you have associated cost figures to the operator that invokes the domain index.

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Jonathan Lewis
http://jonathanlewis.wordpress.com

Author: Cost Based Oracle: Fundamentals
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