【多选题】
A They are owned by the SYSTEM user.
B V$FIXED_TABLE can be queried to display the name of all dynamic performanceviews.
C Data displayed by querying dynamic performance views is derived from metadata in the data dictionary.
D Data displayed by querying dynamic performance views is derived from memory structures.
E They can be queried only when the database is open.
F Read consistency is not guaranteed
查看更多
