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Different Sql_id's But Sql Is The Same Text When Sql Is Marked Hot (Doc ID 2234171.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.

Symptoms



Changes

 Marked SQL statements with package dbms_shared_pool.markhot, as HOT to help reduce library cache: mutex X contention.

You can check if the statement is markhot by the PROPERTY column in view GV$DB_OBJECT_CACHE.  Possible values are:

   HOTCOPYnnn - An object that is a hot copy with integer identifier of 'nnn'.
              Examples are HOTCOPY5, HOTCOPY94 and HOTCOPY125.
HOTCOPY    - As above but the identifier is unknown
HOT        - The "root" kgl object that has been marked as hot
NULL       - A normal object

 

Cause

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