23、Which two are true about data dictionary and dynamic performance views (v$ views)?

A) All database users have access to ALL_* views.

B) Data dictionary view output is subject to read consistency.

C) The defining queries for Oracle supplied dynamic performance views are stored In the data dictionary.

D) All v$ views display output when queries, if the instance is in nomount state

E) All database users have access to all v$ views.

Answer:AB

轉載于:https://blog.51cto.com/13854012/2150355

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