---

You executed the following query： SELECT operation， undo_sql， table_name FROM flashback_transaction_query；  Which statement is correct regarding the query output？（） 
A:It would return information regarding only the last committed transaction.
B:It would return only the active transactions in all the undo segments in the database.
C:It would return only the committed transactions in all the undo segments in the database.
D:It would return both active and committed transactions in all the undo segments in the database.
E:It would return information regarding the transactions that began and were committed in the last 30 minutes.

---

出自：Oracle认证

显示答案