OCP question analysis _ 043: flashback transaction query

OCP question parsing _ 043: flashback transaction query can obtain the historical information of the specified transaction from FLASHBACK_TRANSACTION_QUERY and Undo_ SQL through this UNDO_ SQL, query the operations performed by a specific firm, and then we can restore specific transactions. flashback transaction query test www.2cto.com OCP question: [SQL] 13. 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 wowould return information regarding only the last committed transaction. b. it wowould return only the active transactions in all the undosegments in the database. c. it wowould return only the committed transactions in all the undo segments in the database. d. it wowould return both active and committed transactions in all the undo segments in the database. e. it wowould return information regarding the transactions that began and were committed in the last 30 minutes. answer: D