单项选择题
You want to configure the Flashback Database feature and retain flashback logs for three days. Presently the database is open and configured in ARCHIVELOG mode.
The following steps must be performed in the correct sequence to do this:
Choose the correct sequence.（）
A.4，1，3，2，5
B.4，3，1，2，5
C.2，4，3，5，1
D.4，2，5，3，1
相关考题
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单项选择题
The following command is executed to create the baseline template： SQL> EXECUTEDBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE_TEMPLATE（START_TIME=> TO_TIESTAMP（SYSDATE+2）， END_TIME=>TO_TIMESTAMP（SYSDATE+10）， BASELINE_NAME=>’Mybase4’， TEMPLATE_NAME=>’Mytemp4’， EXPIRATION=>NULL）； Which statement is true about the effect of the above command？（）
A. It creates a baseline template that never expires.
B. It produces an error because no snapshot information is provided to create the baseline.
C. It creates a baseline template that expires after the Automatic Workload Repository （AWR） retention period.
D. It creates a repeating baseline template that repeats after the Automatic Workload Repository （AWR） retention period. -
多项选择题
You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for Recovery Manager (RMAN). To accomplish the backup, you issued the following RMAN command: RMAN> BACKUP SECTION SIZE 300M TABLESPACE users; Which two statements are true about the execution of the above command? （）(Choose two.)
A. The backup piece size will be limited to 300 MB
B. The RMAN uses multiplexing to perform backup
C. The operation is accomplished using the default channel available
D. The RMAN parallelizes the backup although the parallelism is not set for a channel -
多项选择题
Which two commands never trigger an implicit rebalancing within the disk group?（） (Choose two.)
A. ALTER DISKGROUP misc MOUNT;
B. ALTER DISKGROUP misc DROP DISK misc2;
C. ALTER DISKGROUP misc CHECK ALL NOREPAIR;
D. ALTER DISKGROUP misc RESIZE ALL SIZE 1023m;
E. ALTER DISKGROUP dgroupA ADD DISK '/devices/A*';
