Drop the table.
Partition the table.
Truncate the table.
Add a column to the table.
Rename a column in the table.
第1题:
You are working on the APPDB database as a DB A. The database has a default Flashback Data Archive DFLA1 created on it. You issued the following command to drop the Flashback Archive FLA1: DROP FLASHBACK ARCHIVE fla1; What is the effect of this command?()
第2题:
You enabled Flashback Data Archive on the INVENTORY table. Which DDL operation is supported on the table after enabling Flashback Data Archive?()
第3题:
You want to track and store all transactional changes to a table over its lifetime. To accomplish this task, you enabled Flashback Data Archive with the retention of 5 years. After some time, the business requirement changed and you were asked to change the retention from 5 years to 3 years. To accomplish this, you issued the following command: ALTER FLASHBACK ARCHIVE fla1 MODIFY RETENTION 3 YEAR; What is the implication of this command?()
第4题:
To clean up old records that are in a Flashback Data Archive and are past the retention period, what must the DBA do?()
第5题:
Which two are the prerequisites to enable Flashback Data Archive?()
第6题:
The command produces an error because the retention time cannot be reduced.
All historical data is retained but the subsequent flashback data archives are maintained for only three years.
All historical data is purged and the new flashback data archives are maintained for three years.
All historical data older than three years is purged from the flashback archive FLA1.
第7题:
Database must be running in archivelog mode.
Automatic undo management must be enabled.
Undo retention guarantee must be enabled.
The tablespace on which the Flashback Data Archive is created must be managed with Automatic Segment Space Management (ASSM).
第8题:
The Flashback Archive FLA1 is dropped only if it is empty.
The tablespace having Flashback Archive is dropped.
The Flashback Archive FLA1 is dropped after moving the existing data in it to the default Flashback Archive.
The Flashback Data Archive and historical data are dropped.
第9题:
perform point-in-time recovery
perform a Flashback Table operation to restore the table to the state it was in two days ago
perform a Flashback Database operation to restore the database to the state it was in two days ago
perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements, and then use them for recovery
第10题:
Flash recovery area must be defined
Undo retention guarantee must be enabled.
Database must be running in archivelog mode.
Automatic undo management must be enabled.
The tablespace in which the Flashback Data Archive is created must have automatic segment space Management (ASSM).
第11题:
Enable supplemental logging for the database.
Specify undo retention guarantee for the database
Create Flashback Data Archive in the tablespace where the tables are stored.
Create Flashback Data Archive and enable Flashback Data Archive for specific tables
第12题:
TRUNCATE the archive table.
DROP the Flashback Data Archive.
Nothing;expired rows are automatically removed.
Nothing;expired rows are moved to an archive table.
Delete entries from the archive where the metadata date retained is greater than the retention period.
第13题:
You enabled Flashback Data Archive on the INVENTORY table.Which DDL operation is supported on the table after enabling Flashback Data Archive?()
第14题:
You are working as a DBA on the decision support system. There is a business requirement to track and store all transactions for at least three years for a few tables in the database. Automatic undo management is enabled in the database. Which configuration should you use to accomplish this task?()
第15题:
When setting up the Flashback Data Archive, which of these key parameters are required?()
第16题:
Note the output of the following query; SQL> SELECT flashback_archieve_name, status FROM dba_flashback_archieve; FLASHBACK_ARCHIEVE_NAME STATUS FLA1 You executed the following command to enable Flashback Data Archive on the EXCHANGB_PATE table: ALTER TABLE exchange_rate FLASHBACK ARCHIEVE; What is the outcome of this command?()
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:
Enable Flashback Data Archive for the tables.
Specify undo retention guarantee for the database.
Enable supplemental logging for the database.
Query V$UNDOSTAT to determine the amount of undo that will be generated and create an undo tablespace for that size.
Create Flashback Data Archive on the tablespace on which the tables are stored.
第19题:
Tablespace name
Storage quota
Retention
Table name
Create a default archive
第20题:
Drop the table.
Partition the table
Truncate the table.
Add a column to the table.
Rename a column in the table.
第21题:
The table uses the default Flashback Data Archive.
The Flashback Data Archive Is created In the SYSAUX tablespace.
The Flashback Data Archive is created in the same tablespace where the tables are stored.
The command generates an error because no flashback Data Archive name is specified and there is no default Flashback Data Achieve.
第22题:
Database must be running in archivelog mode.
Automatic undo management must be enabled.
Undo retention guarantee must be enabled.
The tablespace on which the Flashback Data Archive is created must be managed with Automatic Segment Space Management (ASSM).
第23题:
The command produces an error because the retention period cannot be reduced
All historical data older than 3 years is purged from the flashback archive FLA1
All historical data is retained but the subsequent flashback data archives are maintained for only 3 years
All historical data is transferred to flashback logs and the flashback archive is refreshed to set a new retention time