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Recursive SQL on SUMDEP$ and SUMPARTLOG$ Executes Many Times and May Cause Waits (Doc ID 2272354.1)

Last updated on MARCH 05, 2021

Applies to:

Oracle Database - Enterprise Edition - Version and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


You see the following SQL listed as a Top SQL by Execution or Top SQL by Row Source in an AWR.  It executes many times and uses mostly CPU.  SUMDEP$ is associated with nested materialized views, and SUMPARTLOG$ is associated with PCT refresh of partitioned base tables.



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