12c Adaptive Query Optimization
Did you know there is a new optimizer feature called Adaptive Query Optimization in 12c? What is Adaptive Query Optimization in 12c?
Adaptive Query Optimization is an automatic optimization of optimal execution plans. It adapts to the most optimal plan during runtime of the sql.
To read more about, review following note and pdf:
Adaptive Execution Plans (Doc ID 1409636.1)
https://blogs.oracle.com/optimizer/resource/CON8622_Oracle_Optimizer_What_to_expect_in_12c_part2.pdf
If you have any questions, please let us know.