单项选择题 Given a complete loss of your database， in what order would you need to perform the following RMAN operations to restore it？（）   a. restore controlfile  b. restore database  c. restore spfile  d. recover database  e. alter database open  f. alter database open resetlogs

单项选择题 Which of the following advisors is run in every maintenance window by the auto-task system?（）

单项选择题 Which of the following advisors within the Oracle advisory framework will analyze a single SQL statement and make recommendations for performance improvement?（）