80.Which two statements regarding a SQL profile are true? (Choose two.)
A. It is built by Automatic Tuning Optimizer.
B. It cannot be stored persistently in the data dictionary.
C. It can be used by the query optimizer automatically.
D. It can be created manually by using the CREATE PROFILE command.
Answer: AC
参考:
http://blog.csdn.net/rlhua/article/details/14109335
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