單項選擇題

You lost the index tablespace in your database. You are not able to use tablespace pointintime recovery on the index tablespace. What could be the reason for this？（）

A.The index tablespace contains bitmap indexes.
B.The index tablespace contains more than one data file.
C.The index tablespace supports only complete recovery.
D.The index tablespace is not a dictionarymanaged tablespace.
E.There is a dependency relationship between a table and its indexes.

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單項選擇題

In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure.
How would you recover the lost redo log member？（）

A.import the database from the last export
B.restore all the members in the group from the last backup
C.drop the lost member from the database， and then add a new member to the group
D.restore all the database files from the backup， and then perform a complete recovery
E.restore all the database files from the backup， and then perform an incomplete recovery

單項選擇題

A user executes a query on the EMP table， which contains thousands of rows， to get details about employees in one of the departments. The user receives the following error： SQL> SELECT ename FROM emp WHERE deptno=10 ORDER BY sal; SELECT ename FROM emp WHERE deptno=10 ORDER BY sal
*
ERROR at line 1：
ORA01157： cannot identify/lock data file 201 see DBWR trace file
ORA01110： data file 201： ’/u01/app/oracle/oradata/orcl/temp01.dbf’
What is a possible reason？（）

A.The tempfile belonging to the default temporary tablespace is missing.
B.The database is opened in restricted mode， so queries are not allowed.
C.The default temporary tablespace required to execute the query is offline.
D.The default temporary tablespace required to execute the query is dropped.
E.The default temporary tablespace required to execute the query is readonly.

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You lost the index tablespace in your database. You are not able to use tablespace point­in­time recovery on the index tablespace. What could be the reason for this？（）

你可能感興趣的試題

In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure. How would you recover the lost redo log member？（）

You lost the index tablespace in your database. You are not able to use tablespace pointintime recovery on the index tablespace. What could be the reason for this？（）

In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure.
How would you recover the lost redo log member？（）