單項(xiàng)選擇題

Your Oracle Database 10g is online when you execute the following statement：
SQL>ALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF；
What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（）

A. The database does not record flashback logs for MY_TABLESPACE
B. The tables residing in MY_TABLESPACE are not protected by the Recycle Bin.
C. All the tablespaces except MY_TABLESPACE can be recovered using Flashback Database feature.
D. None of the flashback technologies， such as Flashback Table， Flashback Transaction Query and Flashback Version Query can be used to recover individual rows within the objects from MY_TABLESPACE

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單項(xiàng)選擇題

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？（）

A. DBA_PENDING_TRANSACTIONS
B. DBA_AUDIT_STATEMENT
C. V$FLASHBACK_DATABASE_STATS
D. FLASHBACK_TRANSACTION_QUERY

多項(xiàng)選擇題

You are maintaining a database that is in ARCHIVELOG mode. You have configured the flash recovery area in your database. The database is in MOUNT EXCLUSIVE mode， and you want to configure the Flashback Database feature. Which two options are NOT required to configure the Flashback Database feature？（）

A. Open the database in read-only mode.
B. Set the retention target with the DB_FLASHBACK_RETENTION_TARGET initialization parameter.
C. Enable the block change tracking feature.
D. Execute the ALTER DATABASE FLASHBACK ON statement.

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Your Oracle Database 10g is online when you execute the following statement： SQL>ALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF； What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（）

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Your Oracle Database 10g is online when you execute the following statement：
SQL>ALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF；
What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（）