【OCP題庫】最新CUUG OCP 12c 071考試題庫（68題）
阿新 • • 發佈：2019-03-07
數據 ted name 性能視圖 statement 不能訪問 inf dynamic acc 68、(29-13)choose two:
Which two statements are true? (Choose two.)
A) DICTIONARY is a view that contains the names of all the data dictionary views that the user can access.
B) The user SYSTEM owns all the base tables and user-accessible views of the data dictionary.
C) All the dynamic performance views prefixed with v$ are accessible to all the database users.
D) The USER_OBJECTS view can provide information about the tables and views created by the user who queries the view.
E) The USER_SYNONYMS view can provide information about private synonyms.
Answer：DE
(解析：A 答案的意思是 dict 包含所有用戶能夠訪問的數據字典視圖，但是有些 dba 打頭的是普通用戶不能訪問的。有些人認為 A 是對的，但是說法有漏洞。
B. system 用戶是操作系統管理員，sys 才是數據庫管理員，數據字典的所有基表和視圖都屬於 sys 用戶。
C. v$為前綴的動態性能視圖要有 DBA 權限才能訪問。
)
【OCP題庫】最新CUUG OCP 12c 071考試題庫（68題）