| ERROR | at least two redo log files or groups must be specified for this command |
| CAUSE | Only one redo log file or group was specified |
| ACTION | Specify at least one more redo log file or group |
| ERROR | at least two redo log files or groups must be specified for this command |
| CAUSE | Only one redo log file or group was specified |
| ACTION | Specify at least one more redo log file or group |