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单选题
You are identifying dictionary objects in the Oracle database. Which of the following is a view in the data dictionary?（）
A
V$DATABASE
B
DBA_TABLES
C
SYSAUD$
D
EMP
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Use the DESCRIBE command on the EMP_DEPT_VU view.B
Use the DEFINE VIEW command on the EMP_DEPT_VU view.C
Use the DESCRIBE VIEW command on the EMP_DEPT_VU view.D
Query the USER_VIEWS data dictionary view to search for the EMP_DEPT_VU view.E
Query the USER_SOURCE data dictionary view to search for the EMP_DEPT_VU view.F
Query the USER_OBJECTS data dictionary view to search for the EMP_DEPT_VU view.
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