单项选择题
You performed the RMAN database backup having a backupset key number 231 with the KEEP FOREVER option.
After some days， you want to change the status of the database backup and you issued the following command：
RMAN>CHANGE BACKUPSET 231 NOKEEP；
What is the implication of this command？（）
A. The backup is deleted.
B. The backup is marked unavailable.
C. The backup overrides the backup retention policy.
D. the backup becomes eligible for deletion according to the existing retention policy.
相关考题
-
单项选择题
WhichstatementdescribestheinformationreturnedbytheDBMS_SPACE.SPACE_USAGEprocedureforLOBspaceusage？（）
A. It returns space usage of only BasicFile LOB chunks.
B. It returns space usage of only SecureFile LOB chunks.
C. It returns both BasicFile and SecureFile LOB space usage for only nonpartitioned tables.
D. It returns both BasicFile and SecureFile LOB space usage for both partitioned and nonpartitioned tables. -
单项选择题
WhichstatementistrueregardingonlineredefinitionforthemigrationofBasicFileLOBstoSecureFileLOBs？（）
A. It cannot be done in parallel.
B. It can be done at the table level or partition level.
C. It does not require additional storage because the operation is done online.
D. Local and global indexes are maintained automatically during the operation. -
单项选择题
ou need to configure fine-grained access control to external network resources from within your database. You create an access control list （ACL） using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created？（）
A. It is a list of remote database links stored in the XML file that are available to the users of the database.
B. It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.
C. It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.
D. It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TCP.
