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多选题
You execute the following command to change the status of the SALES tablespace:  SQL> ALTER TABLESPACE sales OFFLINE;  Which statements describe the effect of the command()
A

The tablespace would require recovery to go back online.

B

A checkpoint is taken on all data files that are associated with the SALES tablespace.

C

The sessions that subsequently try to access the objects in the SALES tablespace receive an error.

D

The new status of the SALES tablespace is recorded in the control file when the database instance is closed.


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更多 “多选题You execute the following command to change the status of the SALES tablespace:  SQL ALTER TABLESPACE sales OFFLINE;  Which statements describe the effect of the command()AThe tablespace would require recovery to go back online.BA checkpoint is taken on all data files that are associated with the SALES tablespace.CThe sessions that subsequently try to access the objects in the SALES tablespace receive an error.DThe new status of the SALES tablespace is recorded in the control file when the database instance is closed.” 相关考题
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考题 单选题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:   RMANCHANGE 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.

考题 多选题You execute the following command to change the status of the SALES tablespace:SQL ALTER TABLESPACE sales OFFLINE; Which statements describe the effect of the command()AThe tablespace would require recovery to go back online.BA checkpoint is taken on all data files that are associated with the SALES tablespace.CThe sessions that subsequently try to access the objects in the SALES tablespace receive an errorDThe new status of the SALES tablespace is recorded in the control file when the database instance isclosed

考题 单选题Before a Flashback Table operation, you execute the following command: ALTER TABLE employees ENABLE ROW MOVEMENT; Why would you need this to be executed?()A Because row IDs may change during the flashback operationB Because the object number changes after the flashback operationC Because the rows are retrieved from the recycle bin during the flashback operationD Because the table is moved forward and back to a temporary during the flashback operation

考题 单选题You execute the following command in your Certkiller .com production database to change the width of the CUST_NAME column of the CUSTOMERS table: ALTER TABLE customers  MODIFY (cust_nameVARCHAR2 (40)) /  When you execute the command, it displays the following error message:  ERROR at line 1:  ORA-00054: resource busy and acquire with NOWAIT specified  What could be the reason for the error message?()A The database instance is not available.B The ALTER TABLE command does not have WAIT optionC The table or a row in the table is currently locked by another user session.D The database instance is busy processing other user sessions commands.E The CUSTOMERS table has no long running query active at the time when this request is made.F The server process executing the ALTER TABLE command is busy with another command execution

考题 单选题You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE; The next day, you issue the following command: BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE; Which statement about the use of the change tracking file is true?()A RMAN reads the block change tracking file only when it performs the incremental level 0 backup.B RMAN reads the block change tracking file when it performs both incremental backups.C RMAN reads the block change tracking file only when it performs the incremental level 1 backup.D RMAN does not read the block change tracking file when it performs either incremental backup.

考题 多选题Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt:   RMAN CONFIGURE CONTROLFILE AUTOBACKUP ON;   After executing this command, in which of the following cases will RMAN make an auto-backup of the control file? ()Awhen you change the name of a datafileBwhen you drop a table from the databaseCwhen you take an export of the databaseDwhen you back up the database using OS utilitiesEwhen you issue an ALTER SYSTEM SWITCH LOGFILE statementFwhen you issue a BACKUP command from inside the RMAN run block

考题 单选题Before a Flashback Table operation,you execute the following command:   ALTER TABLE employees ENABLE ROW MOVEMENT;   Why would you need this to be executed?()A  Because row IDs may change during the flashback operationB  Because the object number changes after the flashback operationC  Because the rows are retrieved from the recycle bin during the flashback operationD  Because the table is moved forward and back to a temporary during the flashback opertion

考题 多选题You work as a database administrator for Supportcenter.cn. Your database is in the MOUNT state and you execute the following command to open it ALTER DATABASE OPEN; What two actions are performed as a result of this command?()AAll control files are openedBAll redo files are openedCThe password file is openedDThe parameter file is openedEAll online data files are opened