Q131. Which three are true about requirements for various FLASHBACK operations? (Choose three.)
- A. FLASHBACK transaction query requires undo to retrieve all versions of a row that existed between two points in time.
- B. FLASHBACK drop requires that the RECYCLEBIN parameter be set to ON.
- C. FLASHBACK version query requires that the RECYCLEBIN parameter be set to ON.
- D. FLASHBACK DATA ARCHIVE requires undo to store all versions of all rows of a table being tracked.
- E. FLASHBACK drop requires undo to retrieve all versions of a row that existed between two points intime.
- F. FLASHBACK version query requires undo to retrieve all versions of a row that existed between twopoints in time.
Answer: A,B,F