单项选择题
A. All the triggers are disabled.
B. All the triggers are enabled by default.
C. Enabled triggers remain enabled and disabled triggers remain disabled.
D. Triggers are deleted when a Flashback Table operation is performed.
单项选择题 WhichofthefollowingstatementsistrueregardingimplementingaFlashbackTablerecovery?()
单项选择题 WhichofthefollowingstatementsistrueregardingtheVERSIONSBETWEENclause?()
单项选择题 At the request of a user, you issue the following command to restore a dropped table: flashback table "BIN$F2JFfMq8Q5unbC0ceE9eJg==$0" to before drop; Later, the user notifies you that the data in the table seems to be very old and out of date. What might be the problem?()