Which background process sequentially writes Flashback Database data from the flashback buffer to the Flashback Database logs？（）

YouaremanagingasingleinstanceOracle10gdatabasethatutili...

单项选择题You are managing a single instance Oracle 10g database that utilizes the following parameters：  Which of the following set of commands must you execute to enable Flashback Database？（）

Youareperformingadatabaserecoverybecauseauser’sschemais...

单项选择题You are performing a database recovery because a user’s schema is dropped. While performing the recovery， you use the UNTIL SEQUENCE clause. Which type of database recovery are you performing？（）

You are performing an incomplete recovery because a tab...

单项选择题

You are performing an incomplete recovery because a tablespace is dropped and purged from the Recycle Bin. In which mode will you execute the following code？（） 
RMAN>RUN  {  
SET UNTIL SEQUENCE  THREAD ；  
RESTORE DATABASE；  
RECOVER DATABASE； 
}