A user receives the following error while executing a query: ORA01555:snapshot too old Which two options can be the solutions to avoid such errors in future?()
- Aincrease the size of redo log files
- Bincrease the size of the undo tablespace
- Cincrease the size of the Database Buffer Cache
- Dincrease the size of the default temporary tablespace
- Eenable the retention guarantee for the undo tablespace