Which method would you use to undo the changes made by a particular transaction without
affecting the changes made by other transactions?
A.
flashback the database to before the transaction was committed
B.
determine all the necessary undo SQL statements from
FLASHBACK_TRANSACTION_QUERY and use them for recovery
C.
point-in-time recovery
D.
execute the ROLLBACK command with transaction number
E.
manually enter the appropriate data again
Explanation: