日韩欧美亚洲 _ 欧美亚洲一区 _ 日本亚洲欧美 _ 亚洲精品欧美 国产白袜脚足J棉袜在线观看_亚洲熟妇av一区二区三区_久久天天躁狠狠躁夜_精品众筹模特私拍在线

多項(xiàng)選擇題

You work as a database administrator for Supportcenter.cn. You are using Recovery Manager (RMAN) to perform backups in your databases. Which four backup operations can be performed using RMAN?()

A.A backup of the target database when it is mounted
B.A backup of online redo log files when the database is open
C.A backup of only used data blocks in the file beingbeingbackup up
D.A backup of online, read/write data files when the database is open
E.A backup of only those data blocks that have changed since a previous backup
F.A backup of online, read/write data files when the database is in the NOMOUNT state.

微信掃碼免費(fèi)搜題