Flashback Table
Flashback Database
Flashback Versions Query
the RMAN REPORT command
the DBA_PENDING_TRANSACTIONS view
第1题:
You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query?()
第2题:
Which method would you use to undo the changes made by a particular transaction without affecting the changes made by other transactions?()
第3题:
You query the ORDERS table and discover that order number 1101 is missing. One of your reports, generated at 5:00 A.M. on April 23, 2005 using Oracle Reports, includes this order number in the output. You have inserted 100 new orders into the ORDERS table since generating this report. Which flashback technology would you use to recover order number 1101 into the ORDERS table without losing the 100 orders that you added after the report was generated?()
第4题:
You executed the following query in your database: SELECT oldest_flashback_scn, oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()
第5题:
By using the transaction identifier provided by () for a particular row change, you can use the Flashback Transaction Query to see the operation performed by the transaction.
第6题:
By mistake, you ran the batch job (for updating the BILL_DETAILS table) twice. You are not sure which rows in the BILL_DETAILS table were affected. You need to identify: a) A list of changes made along with the transaction identifier of each change. b) The necessary SQL statements to undo the erroneous changes. Which option would you choose?()
第7题:
Flashback Table
Flashback Database
Flashback Version Query
The RMAN REPORT command
The DBA_PENDING_TRANSACTIONS view
第8题:
Flashback Drop
Flashback Query
Flashback Versions Query
Flashback Transaction Query
Flashback Table
第9题:
Flashback Table
Flashback Query
Flashback Version Query
Flashback Transaction Query
第10题:
Flashback Table
Flashback Database
Flashback Versions Query
the RMAN REPORT command
the DBA_PENDING_TRANSACTIONS view
第11题:
The time when the last flashback operation in your database was performed.
The time when the first flashback operation in your database was performed.
A list of flashback operations performed in your database using SCN and time.
The approximate time and the lowest system change number (SCN) to which you can flash back your database.
第12题:
RMAN only.
Flashback Table only.
Flashback Version Query only.
Flashback Database and Flashback Transaction Query.
Flashback Version Query and Flashback Transaction Query.
第13题:
Which two statements are correct regarding the Flashback Versions Query feature?()
第14题:
You are working in an online transaction processing (OLTP) environment. You realize that the salary for an employee, John, has been accidentally modified in the EMPLOYEES table. Two days ago, the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected?()
第15题:
By using the transaction identifier provided by () for a particular row change, you can use theFlashback Transaction Query to see the operation performed by the transaction.
第16题:
You executed the following query in your database: FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()
第17题:
You work as a database administrator at Certkiller .com. You are working in an online transaction processing (OLTP) environment. You realize that the salary for an employee, John, has been accidentally modified in the EMPLOYEEStable. Two days ago, the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected?()
第18题:
A user performs an update on a table. Shortly after committing the transaction, they realize that they had an error in their WHERE clause causing the wrong rows to be updated. Which Flashback option would allow you to undo this transaction and restore the table to its previous state?()
第19题:
VERSIONS_STARTSCN
VERSIONS_STARTTIME
VERSIONS_XID
VERSIONS_OPERATION
第20题:
Only the Flashback Table
Both the Flashback Transaction Query and the Flashback Version Query
Only the Flashback Drop
Only the Flashback Version
第21题:
RMAN only
Flashback Table only
Flashback Versions Query only
Flashback Database and Flashback Transaction Query
Flashback Versions Query and Flashback Transaction Query
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:
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24题:
Flashback Table
Flashback Database
Flashback Versions Query
the RMAN REPORT command
the DBA_PENDING_TRANSACTIONS view