单选题You are working on the APPDB database as a DB A. The database has a default Flashback Data Archive DFLA1 created on it. You issued the following command to drop the Flashback Archive FLA1:   DROP FLASHBACK ARCHIVE fla1;   What is the effect of this command?()A The Flashback Archive FLA1 is dropped only if it is empty.B The tablespace having Flashback Archive is dropped.C The Flashback Archive FLA1 is dropped after moving the existing data in it to the default Flashback Archive.D The Flashback Data Archive and historical data are dropped.

单选题
You are working on the APPDB database as a DB A. The database has a default Flashback Data Archive DFLA1 created on it. You issued the following command to drop the Flashback Archive FLA1:   DROP FLASHBACK ARCHIVE fla1;   What is the effect of this command?()
A

 The Flashback Archive FLA1 is dropped only if it is empty.

B

 The tablespace having Flashback Archive is dropped.

C

 The Flashback Archive FLA1 is dropped after moving the existing data in it to the default Flashback Archive.

D

 The Flashback Data Archive and historical data are dropped.


参考解析

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单选题You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB1 in the instance. When you are absent, a user will use a login named Mary to log in and maintain the database snapshots. The user has to delete the database snapshots for DB1, so you have to give the appropriate permissions to the user.  So which database permission should you give the user?()ADELETE BCONTROL CDROP DATABASE DALTER ANY DATASPACE

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