多项选择题X 纠错

A.The instance aborts.
B.The database cannot be recovered.
C.The database can be recovered by restoring the control files from the backup.
D.The database remains opened and you have to shut it down with the ABORT option.
E.The database can be restored till the point of the last closed whole database backup.

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A.committing a transaction
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多项选择题

A.You have to shut down the database to perform the backups.
B.Archiving information is written to the data files and redo log files.
C.You can perform complete database backups without closing the database.
D.Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.
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单项选择题

A.current redo log and inactive redo log
B.checkpoint position to end of redo log
C.beginning of redo log to end of redo log
D.all redo logs before the point of last commit
E.beginning of redo log to checkpoint position

单项选择题

A.The user must be granted the database administrator (DBA) privilege.
B.The user must be listed in the password file for the authentication.
C.No special setup is needed for the user to connect as SYSDBA in iSQL*Plus.
D.Set up a user in the Oracle Application Server Containers for J2EE (OC4J) user manager,and grant the webDba role to the user.

单项选择题

A.The backup is similar to image copy.
B.The backup contains all used data blocks.
C.The backup contains only unused data blocks.
D.The backup contains all data blocks changed since the last incremental level 1 backup.

单项选择题

A.displays only the list of default values
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A.Indexes and views can be created on temporary tables.
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C.Temporary tables are always created in a user’s temporary tablespace.
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单项选择题

A.Undo data becomes obsolete after 1,000 seconds.
B.Undo data gets refreshed after every 1,000 seconds.
C.Undo data will be stored permanently after 1,000 seconds.
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单项选择题

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多项选择题

A.Data files and redo log files can be renamed at the MOUNT stage.
B.Control files are read at the OPEN stage for the location of data files.
C.Control files are required to bring the database to the NOMOUNT stage.
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