To recover a dropped table.
To recover a dropped schema.
To recover data from a truncated table.
To view changes made by all the transactions during a given period of time.
To view changes made by a single transaction during a given period of time.
第1题:
In which scenario do you use the Flashback Database feature?()
第2题:
In which case would you use the Flashback Database feature to perform a recovery?()
第3题:
You are working on an Oracle Database 10g database. For which purposes would you use the Flashback Transaction Query feature? ()
第4题:
On Tuesday, a junior DBA dropped an important application user account, whose schema has important tables. You are asked to recover all the objects in the schema. On investigation, you find that the user account was dropped at 11:00 a.m. and Sunday’s backup is the most recent backup. Which flashback feature would you use?()
第5题:
You are maintaining your database in Oracle10g. You perform a full user-managed backup every Sunday at 8:00 P.M. Your database is running in ARCHIVELOG mode. On Monday, at 9:00 A.M., a tablespace is dropped. You decide to perform incomplete recovery to recover the dropped tablespace. Which two clauses can you use with the RECOVER command?()
第6题:
At 10:30 A.M., you ran a batch job by mistake, which executed a transaction in the database. The transaction identifier of the transaction that made to the changes in the database is 0500A00627B000. At 11:10 A.M., you stopped the batch job. Now, you want to identify the changes made to the database tables by the batch job. Which view will you query?()
第7题:
All the related indexes and views are automatically dropped
The flashback drop feature can recover only the table structure
Only the related indexes are dropped whereas views are invalidated
The flashback drop feature can recover both the table structure and its data
第8题:
to undo the changes made to the EMP table since the specified time
to restore the EMP table that was wrongly dropped from the database
to view the transactions that have modified the EMP table since the specified time
to view the changes made to the EMP table for one or more rows since the specified time
to recover the EMP table to a point in time in the past by restoring the most recent backup
第9题:
UNTIL SEQUENCE
UNTIL SCN
UNTIL CHANGE
UNTIL CANCEL
第10题:
Flashback Drop
Flashback Table
Flashback Database
Flashback Version Query
Flashback Transaction Query
第11题:
to recover a dropped tablespace
to recover data from a truncated table
to recover a data file that has been shrunk
to recover a database to the state that existed before the RESETLOGS operation
第12题:
All the related indexes and views are automatically dropped
The flashback drop feature can recover only the table structure
Only the related indexes are dropped whereas views are invalidated
The flashback drop feature can recover both the table structure and its data
第13题:
Which method would you use to undo the changes made by a particular transaction without affecting the changes made by other transactions?()
第14题:
Why would you use the following FLASHBACK TABLE command?() FLASHBACK TABLE emp TO TIMESTAMP (’11:45’,’hh12:mi’);
第15题:
The RECYCLEBIN parameter is set to ON for your database. You drop a table,PRODUCTS,from the SCOTT schema. Which two statements are true regarding the outcome of this action?()
第16题:
In which scenario will you use the Flashback Version Query feature?()
第17题:
Flashback Database is enabled in your Oracle 10g database. One of your database users erroneously purged an important table residing in his schema. The table was purged sometime between 10:00 P.M. and 10:30 P.M. The next day, you decide to flash back the database. Before you flash back the database, you want to ensure that you have all the necessary flashback data. Which dynamic performance view must you use to determine whether you have the required flashback data to recover the purged table?()
第18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?()
第19题:
DBA_PENDING_TRANSACTIONS
DBA_AUDIT_STATEMENT
V$FLASHBACK_DATABASE_STATS
FLASHBACK_TRANSACTION_QUERY
第20题:
when a table is dropped and you restore it from the Recycle Bin
when a user’s schema is dropped and you recover the user’s schema
when some incorrect data is inserted in the table and you retrieve the table to a state that was at a certain timestamp
when a row of a table is updated frequently and committed, and you view all the versions of the row within a specific duration
第21题:
point-in-time recovery
execute the ROLLBACK command with transaction number
flashback the database to before the transaction was committed
determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and use them for recovery
第22题:
point-in-time recovery
execute the ROLLBACK command with transaction number
flashback the database to before the transaction was committed
determine all the necessary undo SQL statements from FLASHBACK_TRANSACTION_QUERY and use them for recovery
第23题:
when you want to restore a table that has been dropped from the Recycle Bin
when you want to identify the transaction ID of the transaction that deleted some important records from a table
when you want to recover the schema of a dropped user
when you want to restore a dropped tablespace
第24题:
To recover a dropped table.
To recover a dropped schema.
To recover data from a truncated table.
To view changes made by all the transactions during a given period of time.
To view changes made by a single transaction during a given period of time.