单项选择题
A.USER_DUMP_DEST
B.CORE_DUMP_DEST
C.ALERT_LOG_DEST
D.ALERT_DUMP_DEST
E.TRACE_DUMP_DEST
F.BACKGROUND_DUMP_DEST
单项选择题 You executed the following command to back up your control file： ALTER DATABASE BACKUP CONTROLFILE TO TRACE； Which initialization parameter is used to specify the location of the trace file？（）
单项选择题 The HR user creates a view with this command： SQL> CREATE VIEW emp_v AS SELECT * FROM scott.emp； Now HR wants to grant the SELECT privilege on the EMP_V view to the JIM user. Which statement is true in this scenario？（）
多项选择题 Datafilesofwhichthreetablespacescanberecoveredbyperforminganopenrecovery？（）