单选题Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement:   SQL DROP TABLE SCOTT.EMP PURGE;   After one hour, you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup?()A the datafiles associated with the SYSTEM tablespaceB the datafiles associated to the DATA1 tablespaceC the datafiles associated to the SYSTEM and DATA1 tablespacesD all the datafiles in the database

单选题
Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement:   SQL> DROP TABLE SCOTT.EMP PURGE;   After one hour, you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup?()
A

 the datafiles associated with the SYSTEM tablespace

B

 the datafiles associated to the DATA1 tablespace

C

 the datafiles associated to the SYSTEM and DATA1 tablespaces

D

 all the datafiles in the database


参考解析

解析: 暂无解析

相关考题:

Evaluate the SQL statement: TRUNCATE TABLE DEPT; Which three are true about the SQL statement? () A. It releases the storage space used by the table.B. It does not release the storage space used by the table.C. You can roll back the deletion of rows after the statement executes.D. You can NOT roll back the deletion of rows after the statement executes.E. An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.F. You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table

Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement:   SQL DROP TABLE SCOTT.EMP PURGE;   After one hour, you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup?()A、 the datafiles associated with the SYSTEM tablespaceB、 the datafiles associated to the DATA1 tablespaceC、 the datafiles associated to the SYSTEM and DATA1 tablespacesD、 all the datafiles in the database

You are shrinking the SCOTT.EMP table by executing the ALTER TABLE SCOTT.EMP SHRINK SPACE CASCADE statement. What is a prerequisite for shrinking the SCOTT.EMP table?()A、 You must enable the block change tracking feature.B、 You must have enable the flashback feature.C、 You must use the OMF in your database.D、 You must define the tablespace of the SCOTT.EMP table for automatic segment space management.

Your database is running in ARCHIVELOG mode. You are performing a user-managed backup of the DATA1 tablespace.  You place the DATA1 tablespace in backup mode by issuing the following statement:   ALTER TABLESPACE data1 BEGIN BACKUP;   While you are performing the backup, an error occurs that causes the instance to terminate abnormally. Which statement about the DATA1 tablespace is true?()  A、 The DATA1 tablespace is automatically taken out of backup mode when the instance aborts.B、 If you restart the database,the DATA1 tablespace will be automatically taken out of backup mode  when the database is opened.C、 If you restart the database,the DATA1 tablespace will be automatically taken out of backup mode  when the database is mounted.D、 If you restart the database,the database will not be opened.

You just issued the following statement: ALTER TABLE SALES DROP COLUMN PROFIT. Which of the following choices identifies when the column will actually be removed from Oracle?()A、Immediately following statement execution B、After the ALTER TABLE DROP UNUSED COLUMNS command is issued C、After the ALTER TABLE SET UNUSED COLUMN command is issued D、After the ALTER TABLE MODIFY command is issued

You issued the following command:        SQL DROP TABLE MYTABLE;        SQL SHOW RECYCLEBIN  The following output is returned:        ORIGINAL NAME RECYCLEBIN NAME               OBJECT TYPE      DROP TIME        ------------- ------------------------------ --------------- --------------------        MYTABLE BIN$04LhcpndanfgMAAAAAANPw==$0     TABLE           2005-01-13:20:11:31  You want to drop the table, MYTABLE, from the Recycle Bin. Which two commands can you issue to accomplish the desired task?()A、 DROP TABLE MYTABLE PURGE;B、 PURGE RECYCLEBIN;C、 PURGE TABLE MYTABLE;D、 PURGE TABLE BIN$04LhcpndanfgMAAAAAANPw==$0;

Your database is running in NOARCHIVELOG mode with two online redo log files. The SALES table contains sales information for the organization. The SALES table belongs to the SALESTB tablespace.  On Monday, you insert 10 rows into the SALES table. The current log sequence number is 14. You change the tablespace status from READ WRITE to READ ONLY for the SALESTB tablespace. You shut down the database and take a backup of the SALESTB tablespace.   On Tuesday, you start the database. You change the status for the SALESTB tablespace from READ ONLY to READ WRITE. You insert 10 more rows into the SALES table and shut down the database. The current log sequence number is 15.   When you try to open the database on Wednesday morning, you discover that the SALESTB tablespace was lost because of a media failure. Which of the following options is true about recovering the SALES table?()A、 The SALES table cannot be recovered because the database is running in NOARCHIVELOG mode.B、 The SALES table can be recovered by restoring the SALESTB tablespace from the backup and performing a media recovery.C、 The SALES table can be recovered by restoring the SALESTB tablespace from the backup without performing any media recovery.D、 The SALES table can be recovered by restoring the SALESTB tablespace from the backup, but the rows inserted on Tuesday need to be inserted again.

Evaluate the SQL statement:TRUNCATE TABLE DEPT;Which three are true about the SQL statement? ()A、It releases the storage space used by the table.B、It does not release the storage space used by the table.C、You can roll back the deletion of rows after the statement executes.D、You can NOT roll back the deletion of rows after the statement executes.E、An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error.F、You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table

Examine the following commands executed in your database: SQL ALTER SESSION RECYCLEBIN=ON; Session altered  SQL CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;  Table created.  Further, you executed the following command to drop the table:  SQL DROP TABLE emp; Table dropped.  What happens in this scenario? ()A、The table is moved to the SYSAUX tablespace.B、The table is moved to the SYSTEM tablespace.C、The table is removed from the database permanently.D、The table is renamed and remains in the TBSFD tablespace.

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? ()A、 when you change the name of a datafileB、 when you drop a table from the databaseC、 when you take an export of the databaseD、 when you back up the database using OS utilitiesE、 when you issue an ALTER SYSTEM SWITCH LOGFILE statementF、 when you issue a BACKUP command from inside the RMAN run block

You created the DEPT table by using the following command:   CREATE TABLE scott.dept   (deptno NUMBER(3),   dname VARCHAR2(15),   loc VARCHAR2(15) )   STORAGE (INITIAL 100K NEXT 50K  MAXEXTENTS 10 PCTINCREASE 5  FREELIST GROUPS 6 FREELISTS 4);You are required to shrink the DEPT table. While performing the shrink operation, you want to ensure that the recovered space is returned to the tablespace in which the DEPT table is stored. You do not want to shrink the indexes created on the DEPT table. What will you do to shrink the SCOTT.EMP table?()A、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE COMPACT; statement.B、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE; statement.C、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE CASCADE; statement.D、 You cannot shrink the SCOTT.EMP table.

You issued the following statement in your SQL*Plus session:   SQLALTER SESSION ENABLE RESUMABLE TIMEOUT 600;   Which operation is neither suspended nor resumed using the Automatic Resumable Allocation feature in your database?()A、 creating a table in your schema and you exceed your allocated space quota on the tablespaceB、 executing a long query that involves a sort operation and the statement runs out of temporary spaceC、 loading data into tables by using the SQL*Loader and the number of extents in the table reaches the maximum limitD、 creating a table in a dictionary-managed tablespace with an explicit MAXEXTENTS setting which results in an out of space error

User A executes the following command to drop a large table in your database:SQL DROP TABLE trans; While the drop table operation is in progress, user B executes the following command on the same table:SQL DELETE FROM trans WHERE tr_type=’SL’; Which statement is true regarding the DELETE command()A、It fails to delete the records because the records are locked in SHARE mode.B、It deletes the rows successfully because the table is locked in SHARE modeC、It fails to delete the records because the table is locked in EXCLUSIVE mode.D、It deletes the rows successfully because the table is locked in SHARE ROW EXCLUSIVE mode.

You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table:  SQL FLASHBACK TABLE ORDERS TO SCN 771513;   What is the prerequisite to perform Flashback Table?()A、 You must configure OMF in your database.B、 You must enable block change tracking feature in your database.C、 You must enable ROW MOVEMENT feature on the ORDERS table.D、 You must use the Flashback Version Query before using the Flashback Table feature.

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

单选题You are working on an Oracle Database 10g database that operates in the ARCHIVELOG mode. At 06:00 p.m., you discovered that a table in the SYSTEM tablespace that does not belong to the data dictionary was dropped at 03:00 p.m. What would you do to recover the table?()A use the Flashback Transaction Query feature to identify the relevant SQL statement and use it to undrop the tableB restore the entire database from the most recent backup and open itC recover the table by using the Flashback Table featureD perform point-in-time recovery to recover the table

单选题Your database is running in ARCHIVELOG mode. You are performing a user-managed backup of the DATA1 tablespace. You place the DATA1 tablespace in backup mode by issuing the following statement: ALTER TABLESPACE data1 BEGIN BACKUP; While you are performing the backup, an error occurs that causes the instance to terminate abnormally. Which statement about the DATA1 tablespace is true?()AThe DATA1 tablespace is automatically taken out of backup mode when the instance aborts.BIf you restart the database, the DATA1 tablespace will be automatically taken out of backup mode when the database is opened.CIf you restart the database, the DATA1 tablespace will be automatically taken out of backup mode when the database is mounted.DIf you restart the database, the database will not be opened.

单选题Examine the following commands executed in your database: SQL ALTER SESSION RECYCLEBIN=ON; Session altered  SQL  CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees;  Table created.  Further, you executed the following command to drop the table:  SQL DROP TABLE emp;Table dropped.  What happens in this scenario?()AThe table is moved to the SYSAUX tablespace.BThe table is moved to the SYSTEM tablespace.CThe table is removed from the database permanently.DThe table is renamed and remains in the TBSFD tablespace.

单选题Your database is running in ARCHIVELOG mode. You are performing a user-managed backup of the DATA1 tablespace.  You place the DATA1 tablespace in backup mode by issuing the following statement:   ALTER TABLESPACE data1 BEGIN BACKUP;   While you are performing the backup, an error occurs that causes the instance to terminate abnormally. Which statement about the DATA1 tablespace is true?()A The DATA1 tablespace is automatically taken out of backup mode when the instance aborts.B If you restart the database,the DATA1 tablespace will be automatically taken out of backup mode  when the database is opened.C If you restart the database,the DATA1 tablespace will be automatically taken out of backup mode  when the database is mounted.D If you restart the database,the database will not be opened.

单选题You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table:  SQL FLASHBACK TABLE ORDERS TO SCN 771513;   What is the prerequisite to perform Flashback Table?()A You must configure OMF in your database.B You must enable block change tracking feature in your database.C You must enable ROW MOVEMENT feature on the ORDERS table.D You must use the Flashback Version Query before using the Flashback Table feature.

单选题You issued the following command:   ALTER TABLE SCOTT.EMP SHRINK SPACE;   The SCOTT.EMP table is stored in the DATA1 tablespace that has the following properties:   DATA1 is a read/write tablespace.   DATA1 is not autoextensible to an unlimited size.  DATA1 is online.   Segment space management for the DATA1 tablespace is manual.   You issued the ALTER TABLE SCOTT.EMP SHRINK SPACE; command that generates the following error:   ORA-10635: Invalid segment or tablespace type    What could be the reason for the failure of the command?()A The tablespace, DATA1, is not read-only.B The tablespace, DATA1, is not autoextensible.C The tablespace, DATA1, is not offline.D The segment space management for the tablespace, DATA1, is manual.

单选题You created the DEPT table by using the following command:   CREATE TABLE scott.dept   (deptno NUMBER(3),   dname VARCHAR2(15),   loc VARCHAR2(15) )   STORAGE (INITIAL 100K NEXT 50K  MAXEXTENTS 10 PCTINCREASE 5  FREELIST GROUPS 6 FREELISTS 4);You are required to shrink the DEPT table. While performing the shrink operation, you want to ensure that the recovered space is returned to the tablespace in which the DEPT table is stored. You do not want to shrink the indexes created on the DEPT table. What will you do to shrink the SCOTT.EMP table?()A Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE COMPACT; statement.B Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE; statement.C Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE CASCADE; statement.D You cannot shrink the SCOTT.EMP table.

单选题You are performing the shrink operation on the SCOTT.EMP table. You want to perform the same operation on all dependent objects of the SCOTT.EMP table. What is NOT a prerequisite for the operation?()A You must enable the row movement on the SCOTT.EMP table.B You must define the tablespace of the SCOTT.EMP table for automatic segment space management.C You must use the CASCADE clause in the ALTER TABLE SHRINK SPACE statement.D You must use the COMPACT clause in the ALTER TABLE SHRINK SPACE statement.

单选题Your database is running in NOARCHIVELOG mode with two online redo log files. The SALES table contains sales information for the organization. The SALES table belongs to the SALESTB tablespace.  On Monday, you insert 10 rows into the SALES table. The current log sequence number is 14. You change the tablespace status from READ WRITE to READ ONLY for the SALESTB tablespace. You shut down the database and take a backup of the SALESTB tablespace.   On Tuesday, you start the database. You change the status for the SALESTB tablespace from READ ONLY to READ WRITE. You insert 10 more rows into the SALES table and shut down the database. The current log sequence number is 15.   When you try to open the database on Wednesday morning, you discover that the SALESTB tablespace was lost because of a media failure. Which of the following options is true about recovering the SALES table?()A The SALES table cannot be recovered because the database is running in NOARCHIVELOG mode.B The SALES table can be recovered by restoring the SALESTB tablespace from the backup and performing a media recovery.C The SALES table can be recovered by restoring the SALESTB tablespace from the backup without performing any media recovery.D The SALES table can be recovered by restoring the SALESTB tablespace from the backup, but the rows inserted on Tuesday need to be inserted again.

单选题You are shrinking the SCOTT.EMP table by executing the ALTER TABLE SCOTT.EMP SHRINK SPACE CASCADE statement. What is a prerequisite for shrinking the SCOTT.EMP table?()A You must enable the block change tracking feature.B You must have enable the flashback feature.C You must use the OMF in your database.D You must define the tablespace of the SCOTT.EMP table for automatic segment space management.

单选题Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement:   SQL DROP TABLE SCOTT.EMP PURGE;   After one hour, you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup?()A the datafiles associated with the SYSTEM tablespaceB the datafiles associated to the DATA1 tablespaceC the datafiles associated to the SYSTEM and DATA1 tablespacesD all the datafiles in the database

单选题User A executes the following command to drop a large table in your database: SQL DROP TABLE trans;  While the drop table operation is in progress, user B executes the following command on the same table: SQL DELETE FROM trans WHERE tr_type=’SL’;  Which statement is true regarding the DELETE command()AIt fails with a Resource Busy error.BIt deletes the rows successfully because the table is locked in SHARE mode.CIt fails to delete the records because the table is locked in EXCLUSIVE mode.DIt deletes the rows successfully because the table is locked in SHARE ROW EXCLUSIVE mode.

单选题You issued the following statement in your SQL*Plus session:   SQLALTER SESSION ENABLE RESUMABLE TIMEOUT 600;   Which operation is neither suspended nor resumed using the Automatic Resumable Allocation feature in your database?()A creating a table in your schema and you exceed your allocated space quota on the tablespaceB executing a long query that involves a sort operation and the statement runs out of temporary spaceC loading data into tables by using the SQL*Loader and the number of extents in the table reaches the maximum limitD creating a table in a dictionary-managed tablespace with an explicit MAXEXTENTS setting which results in an out of space error