【单选题】On Friday at 11:30 am you decided to flash back the database because of a user error that occurred at 8:30am. Which option must you use to check whether a flashback operation can recover the database ...
A.
Check the alert log file
B.
Query the V$FLASHBACK_DATABASE_LOG view
C.
Query the V$RECOVERY_FILE_DEST_SIZE view
D.
Query the V$FLASHBACK_DATABASE_STAT view
E.
Check the value assigned for the UNDO_RETENTION parameter
【单选题】Your network consists of a single Active Directory domain. The functional level of the domain isWindows Server 2003.You extend the Active Directory Schema to support a custom user attribute.You need t...