Internal SQL Is Executed Excessive Times every night
(Doc ID 2522414.1)
Last updated on NOVEMBER 05, 2019
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 and later
Information in this document applies to any platform.
Internal SQL is executed excessive times (e.g. over 5 millions) in maintenance window
which is scheduled at 22 pm on weekdays by default.
We can see it in AWR reports / Staspack reports :
Executions Rows Processed Rows per Exec Elapsed Time (s) %CPU %IO SQL Id SQL Module SQL Text
55,762,957 55,762,957 1.00 448.55 99.4 0 b9nbhsbx8tqz5 SELECT /*+ OPT_PARAM('_paralle...
55,756,637 0 0.00 224.84 101.5 0 d7bgf84kwj3s7 DBMS_SCHEDULER SELECT /*+ OPT_PARAM('_paralle...
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