SQL Ran From 1min To 50min After 19c Upgrade And Stops Using Parallel Execution
(Doc ID 2877745.1)
Last updated on APRIL 17, 2023
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206.0 and later
Information in this document applies to any platform.
After upgrade from 12c performance of a SQL decreased and started executing anywhere from 1min to 50 min instead of seconds that it took back in 12c. See SQLT Output below:
Change here was upgrade from 12c to 19.7.
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