多项选择题
You plan to execute the following command to perform a Flashback Database operation in your database：
SQL> FLASHBACK DATABASE TO TIMESTAMP （SYSDATE -5/24）；
Which two statements are true about this？（）
A. The database must have multiplexed redo log files
B. The database must be in the MOUNT state to execute the command
C. The database must be in the NOMOUNT state to execute the command
D. The database must be opened in RESTRICTED mode before this operation
E. The database must be opened with the RESETLOGS option after the flashback operation
相关考题
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多项选择题
The RECYCLEBIN parameter is set to ON for your database. You drop a table，PRODUCTS，from the SCOTT schema. Which two statements are true regarding the outcome of this action？（）
A. All the related indexes and views are automatically dropped
B. The flashback drop feature can recover only the table structure
C. Only the related indexes are dropped whereas views are invalidated
D. The flashback drop feature can recover both the table structure and its data -
单项选择题
Examine the following command： SQL> ALTER TABLE booking SHRINK SPACE COMPACT； Which activity is performed when the preceding command is executed？（）
A. The shrink operation touches every block in the BOOKING table
B. The high-water mark （HWM） for the BOOKING table is shifted from its original position
C. The progress of the shrink operation is saved in the bitmap blocks of the BOOKING table
D. The data manipulation language （DML） triggers on the BOOKING table are executed because the shrink operation is internally handled by the INSERT/DELETE operation -
单项选择题
Examine the following scenario： The target database instance is running. The most recent backup available for the target database was taken two days ago. Log files switches have occurred in last two days. The target database is duplicated on the same host， using the Recovery Manager （RMAN） duplicate command as follows： RMAN> RUN { ALLOCATE AUXILIARY CHANNEL aux 1 DEVICE TYPE DISK； DUPLICATE TARGET DATABASE TO auxdb； } Which statement is true about the duplicate database in this scenario？（）
A. It contains data till the last backup
B. It contains all data from target database until the current time
C. It contains all data from only the committed transactions in the target database
D. It contains all data except that which is used by the transactions in the current online redo file of target database
