38、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
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原文：https://www.cnblogs.com/alice9313/p/9603846.html