The Alert Log page, which shows the contents of the alert log file for Oracle databases, contains a chronological list of messages and errors that have occurred for the database.
To open the Alert Log page
Click Configuration & Memory | Alert Log.
 
Actions on the Alert Log & Trace Files opened from the Alert Log
| Action | Description | 
|---|---|
| Go to the top of the file | |
| Page up | |
| Page down | |
| Go to the end of the file | |
| Close the file. 
 | 
The Alert Log display
| Display | Description | 
|---|---|
| Date | The time at which the message or error occurred. | 
| Instance | The instance within the Oracle RAC cluster where the message or error occurred. | 
| File Contents | The text of the Oracle message or error. Additional information is displayed in colored or hyperlink text. | 
| File Contents - Blue Hyperlink Text | Click to view the Oracle trace file generated for the specified message or error. | 
| File Contents - Red Text | Oracle error. If there is a trace file associated with the error, click the hyperlink text to view the file. Otherwise, consult your Oracle documentation or the Oracle Web site for more information. | 
| File Contents - Green Text | Log entry. The location of the log entry where you can look for more information. | 
The Trace File display
A trace file contains text generated by specified errors or messages in the Oracle database.
If you see ORA-16000 on clicking the Alert Log tab on a standby database then create the directory object on the primary and replicate it to the standby.