Which two are true about Oracle Flashback features? (Choose two.)
FLASHBACK QUERY can retrieve REDO records from ONLINE and ARCHIVE D REDO LOG files.
FLASHBACK VERSION QUERY can retrieve REDO records from ONLINE and ARCHIVE D REDO LOG files.
FLASHBACK TABLE can undrop a column.
FLASHBACK DROP can undrop an index when undropping a table.
After a database is restored from flashback logs using the FLASHBACK DATABASE command, it is sometimes rolled forward using redo logs.
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