Q56 Which method can be used to undo the changes using a single command?
Q56. Examine this configuration:
1. CDB1 is a container database.
2. There are several pluggable databases (PDBs) in CDB1.
3. Each PDB has several tables with referential integrity constraints.
4. FLASHBACK DATABASE is ON.
5. UNDO RETENTION GUARANTEE is enabled.
Multiple undesired multitable changes were made in all the PDBs.
Which method can be used to undo the changes using a single command?
- A. restore and recover database
- B. flashback transaction
- C. flashback database
- D. flashback table
- E. flashback table and transaction
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