Performance Issue as a Result of an SQL Query Running Multiple Times (Doc ID 823785.1)

Symptoms

-- Problem Statement:
A backup is noticed in AgentPlanning and Bulk Plan threads.  Active bulk plans were no longer running and the system had come to a halt.

It was noticed that the following query was hanging and running often:

select rg.rate_zone_profile_gid from rate_geo rg, rate_zone_profile_d rzpd where rg.rate_zone_profile_gid is not null and rzpd.rate_zone_profile_gid = rg.rate_zone_profile_gid and rownum <= 1 /* DEFAULT */

Cause

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