多选题

Which two statements about the SQL Management Base (SMB) are true?() 

A It contains only SQL profiles generated by SQL Tuning Advisor.

B It stores plans generated by the optimizer using a stored outline.

C It is part of the data dictionary and stored in the SYSAUX tablespace.

D It is part of the data dictionary and stored in the SYSTEM tablespace.

E It contains the statement log,the plan history,plan baselines,and SQL profiles.

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