单项选择题 Exhibit： View the Exhibit.You have more than one table in the recycle bin having the same original name， DEPT2. You do not have any table with the nameDEPT2 in your schema. You executed the following command：PURGE TABLE dept2； Which statement is correct in this scenario？（）

单项选择题 While designing the database for one of your online transaction processing （OLTP） applications， you want to achieve the following：  a） high availability of data  b） faster primary key access to the table data  c） compact storage for the table  Which type of tables would you use to achieve these objectives？（）

单项选择题 Youexecutedthefollowingqueryinyourdatabase：SELECToldest_flashback_scn，oldest_flashback_timeFROMV$FLASHBACK_DATABASE_LOG；Whatwouldyoudeterminefromthe output？（）