What happens to the sessions that are presently connected to the database instance?
Which two statements are true about differential incremental backups?
which situation may the UNDO_RETENTION parameter be ignored, even if it is set to a value?
Which statement is true regarding the DELETE command?
What is the effect of this command?
Which constraints will remain enabled by default during this operation?
Which two statements are true about the effect of the command?
Which statements listed below describe the data dictionary views?
What could be the reason for this error?